diff --git a/package-lock.json b/package-lock.json
index 0fa0ce2ceb..5376d8e58a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -44629,7 +44629,7 @@
         "minimist": "^1.2.7",
         "mmmagic": "^0.5.3",
         "moment": "^2.29.4",
-        "mongodb": "5.9.2",
+        "mongodb-legacy": "5.0.0",
         "mongoose": "^7.8.0",
         "multer": "overleaf/multer#e1df247fbf8e7590520d20ae3601eaef9f3d2e9e",
         "nocache": "^2.1.0",
@@ -45844,6 +45844,17 @@
         }
       }
     },
+    "services/web/node_modules/mongodb-legacy": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/mongodb-legacy/-/mongodb-legacy-5.0.0.tgz",
+      "integrity": "sha512-q2G+MRwde6114bCAF/EZLmMXSsebIKMHmzsfOJq6M/Tj4gr3wLT50+rJsJNkiR0e0kjFx3dllWjqwRR1n11Zsw==",
+      "dependencies": {
+        "mongodb": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=14.20.1"
+      }
+    },
     "services/web/node_modules/mongoose": {
       "version": "7.8.0",
       "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-7.8.0.tgz",
@@ -53393,7 +53404,7 @@
         "mocha-each": "^2.0.1",
         "mock-fs": "^5.1.2",
         "moment": "^2.29.4",
-        "mongodb": "5.9.2",
+        "mongodb-legacy": "5.0.0",
         "mongoose": "^7.8.0",
         "multer": "overleaf/multer#e1df247fbf8e7590520d20ae3601eaef9f3d2e9e",
         "nocache": "^2.1.0",
@@ -54199,6 +54210,14 @@
             "socks": "^2.7.1"
           }
         },
+        "mongodb-legacy": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/mongodb-legacy/-/mongodb-legacy-5.0.0.tgz",
+          "integrity": "sha512-q2G+MRwde6114bCAF/EZLmMXSsebIKMHmzsfOJq6M/Tj4gr3wLT50+rJsJNkiR0e0kjFx3dllWjqwRR1n11Zsw==",
+          "requires": {
+            "mongodb": "^5.0.0"
+          }
+        },
         "mongoose": {
           "version": "7.8.0",
           "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-7.8.0.tgz",
diff --git a/services/web/app/src/Features/Authorization/AuthorizationManager.js b/services/web/app/src/Features/Authorization/AuthorizationManager.js
index f4789668ee..28de66047f 100644
--- a/services/web/app/src/Features/Authorization/AuthorizationManager.js
+++ b/services/web/app/src/Features/Authorization/AuthorizationManager.js
@@ -1,5 +1,5 @@
 const { callbackify } = require('util')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const CollaboratorsGetter = require('../Collaborators/CollaboratorsGetter')
 const CollaboratorsHandler = require('../Collaborators/CollaboratorsHandler')
 const ProjectGetter = require('../Project/ProjectGetter')
diff --git a/services/web/app/src/Features/Authorization/AuthorizationMiddleware.js b/services/web/app/src/Features/Authorization/AuthorizationMiddleware.js
index 36f75741b2..6b2d2ab920 100644
--- a/services/web/app/src/Features/Authorization/AuthorizationMiddleware.js
+++ b/services/web/app/src/Features/Authorization/AuthorizationMiddleware.js
@@ -1,6 +1,6 @@
 const AuthorizationManager = require('./AuthorizationManager')
 const logger = require('@overleaf/logger')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../Errors/Errors')
 const HttpErrorHandler = require('../Errors/HttpErrorHandler')
 const AuthenticationController = require('../Authentication/AuthenticationController')
diff --git a/services/web/app/src/Features/Collaborators/CollaboratorsController.js b/services/web/app/src/Features/Collaborators/CollaboratorsController.js
index 9b1a017b1e..22ab26bb53 100644
--- a/services/web/app/src/Features/Collaborators/CollaboratorsController.js
+++ b/services/web/app/src/Features/Collaborators/CollaboratorsController.js
@@ -1,6 +1,6 @@
 const OError = require('@overleaf/o-error')
 const HttpErrorHandler = require('../../Features/Errors/HttpErrorHandler')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const CollaboratorsHandler = require('./CollaboratorsHandler')
 const CollaboratorsGetter = require('./CollaboratorsGetter')
 const OwnershipTransferHandler = require('./OwnershipTransferHandler')
diff --git a/services/web/app/src/Features/Collaborators/CollaboratorsGetter.js b/services/web/app/src/Features/Collaborators/CollaboratorsGetter.js
index 8d053b028d..5d729437a2 100644
--- a/services/web/app/src/Features/Collaborators/CollaboratorsGetter.js
+++ b/services/web/app/src/Features/Collaborators/CollaboratorsGetter.js
@@ -1,6 +1,6 @@
 const { callbackify } = require('util')
 const pLimit = require('p-limit')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const OError = require('@overleaf/o-error')
 const { Project } = require('../../models/Project')
 const UserGetter = require('../User/UserGetter')
diff --git a/services/web/app/src/Features/Helpers/Mongo.js b/services/web/app/src/Features/Helpers/Mongo.js
index f2121ac009..3ec083a1f5 100644
--- a/services/web/app/src/Features/Helpers/Mongo.js
+++ b/services/web/app/src/Features/Helpers/Mongo.js
@@ -1,5 +1,5 @@
 const OError = require('@overleaf/o-error')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { ObjectId: MongooseObjectId } = require('mongoose').mongo
 
 function _getObjectIdInstance(id) {
diff --git a/services/web/app/src/Features/History/HistoryRangesSupportMigration.js b/services/web/app/src/Features/History/HistoryRangesSupportMigration.js
index cce6f18ffd..210c3cfe4b 100644
--- a/services/web/app/src/Features/History/HistoryRangesSupportMigration.js
+++ b/services/web/app/src/Features/History/HistoryRangesSupportMigration.js
@@ -1,7 +1,7 @@
 // @ts-check
 
 const { callbackify } = require('util')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const OError = require('@overleaf/o-error')
 const logger = require('@overleaf/logger')
 const HistoryManager = require('../History/HistoryManager')
diff --git a/services/web/app/src/Features/InactiveData/InactiveProjectManager.js b/services/web/app/src/Features/InactiveData/InactiveProjectManager.js
index d7b1372f7b..fec9405a44 100644
--- a/services/web/app/src/Features/InactiveData/InactiveProjectManager.js
+++ b/services/web/app/src/Features/InactiveData/InactiveProjectManager.js
@@ -4,7 +4,7 @@ const DocstoreManager = require('../Docstore/DocstoreManager')
 const ProjectGetter = require('../Project/ProjectGetter')
 const ProjectUpdateHandler = require('../Project/ProjectUpdateHandler')
 const { Project } = require('../../models/Project')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { READ_PREFERENCE_SECONDARY } = require('../../infrastructure/mongodb')
 const { callbackifyAll } = require('@overleaf/promise-utils')
 
diff --git a/services/web/app/src/Features/Institutions/InstitutionsManager.js b/services/web/app/src/Features/Institutions/InstitutionsManager.js
index f458121296..b6d554dd78 100644
--- a/services/web/app/src/Features/Institutions/InstitutionsManager.js
+++ b/services/web/app/src/Features/Institutions/InstitutionsManager.js
@@ -2,7 +2,7 @@ const {
   callbackifyAll,
   promiseMapWithLimit,
 } = require('@overleaf/promise-utils')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Settings = require('@overleaf/settings')
 const logger = require('@overleaf/logger')
 const { fetchJson } = require('@overleaf/fetch-utils')
diff --git a/services/web/app/src/Features/Project/FolderStructureBuilder.js b/services/web/app/src/Features/Project/FolderStructureBuilder.js
index ddf6f4bb48..d091c71a0d 100644
--- a/services/web/app/src/Features/Project/FolderStructureBuilder.js
+++ b/services/web/app/src/Features/Project/FolderStructureBuilder.js
@@ -1,6 +1,6 @@
 const Path = require('path')
 const OError = require('@overleaf/o-error')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 module.exports = { buildFolderStructure }
 
diff --git a/services/web/app/src/Features/Project/ProjectCollabratecDetailsHandler.js b/services/web/app/src/Features/Project/ProjectCollabratecDetailsHandler.js
index 82944d4c47..59547e7b40 100644
--- a/services/web/app/src/Features/Project/ProjectCollabratecDetailsHandler.js
+++ b/services/web/app/src/Features/Project/ProjectCollabratecDetailsHandler.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { Project } = require('../../models/Project')
 const { callbackifyAll } = require('@overleaf/promise-utils')
 
diff --git a/services/web/app/src/Features/Project/ProjectController.js b/services/web/app/src/Features/Project/ProjectController.js
index 84287cd84a..356af8b637 100644
--- a/services/web/app/src/Features/Project/ProjectController.js
+++ b/services/web/app/src/Features/Project/ProjectController.js
@@ -5,7 +5,7 @@ const { setTimeout } = require('timers/promises')
 const pProps = require('p-props')
 const logger = require('@overleaf/logger')
 const { expressify } = require('@overleaf/promise-utils')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const ProjectDeleter = require('./ProjectDeleter')
 const ProjectDuplicator = require('./ProjectDuplicator')
 const ProjectCreationHandler = require('./ProjectCreationHandler')
diff --git a/services/web/app/src/Features/Project/ProjectCreationHandler.js b/services/web/app/src/Features/Project/ProjectCreationHandler.js
index 0f8bdcf904..3829caaafa 100644
--- a/services/web/app/src/Features/Project/ProjectCreationHandler.js
+++ b/services/web/app/src/Features/Project/ProjectCreationHandler.js
@@ -1,7 +1,7 @@
 const OError = require('@overleaf/o-error')
 const metrics = require('@overleaf/metrics')
 const Settings = require('@overleaf/settings')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Features = require('../../infrastructure/Features')
 const { Project } = require('../../models/Project')
 const { Folder } = require('../../models/Folder')
diff --git a/services/web/app/src/Features/Project/ProjectEntityMongoUpdateHandler.js b/services/web/app/src/Features/Project/ProjectEntityMongoUpdateHandler.js
index 73f7d57ada..dcf1bd0471 100644
--- a/services/web/app/src/Features/Project/ProjectEntityMongoUpdateHandler.js
+++ b/services/web/app/src/Features/Project/ProjectEntityMongoUpdateHandler.js
@@ -2,7 +2,7 @@ const { callbackify } = require('util')
 const { callbackifyMultiResult } = require('@overleaf/promise-utils')
 const logger = require('@overleaf/logger')
 const path = require('path')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Settings = require('@overleaf/settings')
 const OError = require('@overleaf/o-error')
 const CooldownManager = require('../Cooldown/CooldownManager')
diff --git a/services/web/app/src/Features/Project/ProjectHelper.js b/services/web/app/src/Features/Project/ProjectHelper.js
index 1c91e6c12a..404d079c83 100644
--- a/services/web/app/src/Features/Project/ProjectHelper.js
+++ b/services/web/app/src/Features/Project/ProjectHelper.js
@@ -1,5 +1,5 @@
 // ts-check
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const _ = require('lodash')
 const { promisify } = require('util')
 const Settings = require('@overleaf/settings')
diff --git a/services/web/app/src/Features/SplitTests/SplitTestSessionHandler.js b/services/web/app/src/Features/SplitTests/SplitTestSessionHandler.js
index 1b9bf5597f..52d13527cf 100644
--- a/services/web/app/src/Features/SplitTests/SplitTestSessionHandler.js
+++ b/services/web/app/src/Features/SplitTests/SplitTestSessionHandler.js
@@ -1,6 +1,6 @@
 const { callbackify } = require('util')
 const _ = require('lodash')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const logger = require('@overleaf/logger')
 const Metrics = require('@overleaf/metrics')
 const SessionManager = require('../Authentication/SessionManager')
diff --git a/services/web/app/src/Features/Subscription/RecurlyEventHandler.js b/services/web/app/src/Features/Subscription/RecurlyEventHandler.js
index d933bffc1c..30b780221e 100644
--- a/services/web/app/src/Features/Subscription/RecurlyEventHandler.js
+++ b/services/web/app/src/Features/Subscription/RecurlyEventHandler.js
@@ -1,6 +1,6 @@
 const AnalyticsManager = require('../Analytics/AnalyticsManager')
 const SubscriptionEmailHandler = require('./SubscriptionEmailHandler')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const INVOICE_SUBSCRIPTION_LIMIT = 10
 
diff --git a/services/web/app/src/Features/Subscription/TeamInvitesHandler.js b/services/web/app/src/Features/Subscription/TeamInvitesHandler.js
index da93ff2b7f..45a0495353 100644
--- a/services/web/app/src/Features/Subscription/TeamInvitesHandler.js
+++ b/services/web/app/src/Features/Subscription/TeamInvitesHandler.js
@@ -3,7 +3,7 @@ const crypto = require('crypto')
 
 const settings = require('@overleaf/settings')
 const Modules = require('../../infrastructure/Modules')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const { Subscription } = require('../../models/Subscription')
 const { SSOConfig } = require('../../models/SSOConfig')
diff --git a/services/web/app/src/Features/ThirdPartyDataStore/TpdsUpdateSender.js b/services/web/app/src/Features/ThirdPartyDataStore/TpdsUpdateSender.js
index 565ec41b8b..cd581ff4fc 100644
--- a/services/web/app/src/Features/ThirdPartyDataStore/TpdsUpdateSender.js
+++ b/services/web/app/src/Features/ThirdPartyDataStore/TpdsUpdateSender.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const _ = require('lodash')
 const { callbackify } = require('util')
 const logger = require('@overleaf/logger')
diff --git a/services/web/app/src/Features/TokenAccess/TokenAccessHandler.js b/services/web/app/src/Features/TokenAccess/TokenAccessHandler.js
index f5f5ef9728..f81168d3f8 100644
--- a/services/web/app/src/Features/TokenAccess/TokenAccessHandler.js
+++ b/services/web/app/src/Features/TokenAccess/TokenAccessHandler.js
@@ -1,7 +1,7 @@
 const { Project } = require('../../models/Project')
 const PublicAccessLevels = require('../Authorization/PublicAccessLevels')
 const PrivilegeLevels = require('../Authorization/PrivilegeLevels')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Metrics = require('@overleaf/metrics')
 const Settings = require('@overleaf/settings')
 const logger = require('@overleaf/logger')
diff --git a/services/web/app/src/Features/User/SAMLIdentityManager.js b/services/web/app/src/Features/User/SAMLIdentityManager.js
index ab71950087..fbc7f50dab 100644
--- a/services/web/app/src/Features/User/SAMLIdentityManager.js
+++ b/services/web/app/src/Features/User/SAMLIdentityManager.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const EmailHandler = require('../Email/EmailHandler')
 const Errors = require('../Errors/Errors')
 const InstitutionsAPI = require('../Institutions/InstitutionsAPI')
diff --git a/services/web/app/src/Features/User/UserInfoController.js b/services/web/app/src/Features/User/UserInfoController.js
index a821733a91..4eeea4f5e9 100644
--- a/services/web/app/src/Features/User/UserInfoController.js
+++ b/services/web/app/src/Features/User/UserInfoController.js
@@ -1,6 +1,6 @@
 const UserGetter = require('./UserGetter')
 const SessionManager = require('../Authentication/SessionManager')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 function getLoggedInUsersPersonalInfo(req, res, next) {
   const userId = SessionManager.getLoggedInUserId(req.session)
diff --git a/services/web/app/src/Features/UserMembership/UserMembershipHandler.js b/services/web/app/src/Features/UserMembership/UserMembershipHandler.js
index 9f2c0342ad..0632f6e50e 100644
--- a/services/web/app/src/Features/UserMembership/UserMembershipHandler.js
+++ b/services/web/app/src/Features/UserMembership/UserMembershipHandler.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { promisifyAll, callbackify } = require('@overleaf/promise-utils')
 const EntityModels = {
   Institution: require('../../models/Institution').Institution,
diff --git a/services/web/app/src/infrastructure/Validation.js b/services/web/app/src/infrastructure/Validation.js
index 7c68a9daa7..eafb82cda4 100644
--- a/services/web/app/src/infrastructure/Validation.js
+++ b/services/web/app/src/infrastructure/Validation.js
@@ -1,5 +1,5 @@
 const { Joi: CelebrateJoi, celebrate, errors } = require('celebrate')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const objectIdValidator = {
   type: 'objectId',
diff --git a/services/web/app/src/infrastructure/mongodb.js b/services/web/app/src/infrastructure/mongodb.js
index b5997be2db..195844f914 100644
--- a/services/web/app/src/infrastructure/mongodb.js
+++ b/services/web/app/src/infrastructure/mongodb.js
@@ -1,4 +1,4 @@
-const mongodb = require('mongodb')
+const mongodb = require('mongodb-legacy')
 const OError = require('@overleaf/o-error')
 const Settings = require('@overleaf/settings')
 const Mongoose = require('./Mongoose')
diff --git a/services/web/migrations/20231105000000_move_doc_versions_from_docops_to_docs.js b/services/web/migrations/20231105000000_move_doc_versions_from_docops_to_docs.js
index 603494b749..b14183843a 100644
--- a/services/web/migrations/20231105000000_move_doc_versions_from_docops_to_docs.js
+++ b/services/web/migrations/20231105000000_move_doc_versions_from_docops_to_docs.js
@@ -1,4 +1,4 @@
-const { ObjectId, ReadPreference } = require('mongodb')
+const { ObjectId, ReadPreference } = require('mongodb-legacy')
 
 const BATCH_SIZE = parseInt(process.env.BATCH_SIZE || '1000', 10)
 const MIN_ID = process.env.MIN_ID
diff --git a/services/web/modules/history-v1/test/acceptance/src/LabelsTests.js b/services/web/modules/history-v1/test/acceptance/src/LabelsTests.js
index 7d01bf796a..ec62ff1e70 100644
--- a/services/web/modules/history-v1/test/acceptance/src/LabelsTests.js
+++ b/services/web/modules/history-v1/test/acceptance/src/LabelsTests.js
@@ -12,7 +12,7 @@
  */
 const _ = require('lodash')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const User = require('../../../../../test/acceptance/src/helpers/User')
 const MockProjectHistoryApiClass = require('../../../../../test/acceptance/src/mocks/MockProjectHistoryApi')
diff --git a/services/web/modules/history-v1/test/acceptance/src/ProjectStructureTests.js b/services/web/modules/history-v1/test/acceptance/src/ProjectStructureTests.js
index e1e1e5573b..5254c7becb 100644
--- a/services/web/modules/history-v1/test/acceptance/src/ProjectStructureTests.js
+++ b/services/web/modules/history-v1/test/acceptance/src/ProjectStructureTests.js
@@ -1,5 +1,5 @@
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Path = require('path')
 const fs = require('fs')
 const Settings = require('@overleaf/settings')
diff --git a/services/web/modules/server-ce-scripts/scripts/check-mongodb.js b/services/web/modules/server-ce-scripts/scripts/check-mongodb.js
index 5b8fda183d..3dd9f33b61 100644
--- a/services/web/modules/server-ce-scripts/scripts/check-mongodb.js
+++ b/services/web/modules/server-ce-scripts/scripts/check-mongodb.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { waitForDb, db } = require('../../../app/src/infrastructure/mongodb')
 const { getMongoClient } = require('../../../app/src/infrastructure/Mongoose')
 
diff --git a/services/web/package.json b/services/web/package.json
index 1ead0a01a7..368dfece6c 100644
--- a/services/web/package.json
+++ b/services/web/package.json
@@ -137,7 +137,7 @@
     "minimist": "^1.2.7",
     "mmmagic": "^0.5.3",
     "moment": "^2.29.4",
-    "mongodb": "5.9.2",
+    "mongodb-legacy": "5.0.0",
     "mongoose": "^7.8.0",
     "multer": "overleaf/multer#e1df247fbf8e7590520d20ae3601eaef9f3d2e9e",
     "nocache": "^2.1.0",
diff --git a/services/web/scripts/analytics/sync_group_subscription_memberships.js b/services/web/scripts/analytics/sync_group_subscription_memberships.js
index 691a3ec451..69ce0f1d25 100644
--- a/services/web/scripts/analytics/sync_group_subscription_memberships.js
+++ b/services/web/scripts/analytics/sync_group_subscription_memberships.js
@@ -7,7 +7,7 @@ const {
 } = require('../../app/src/models/DeletedSubscription')
 const minimist = require('minimist')
 const _ = require('lodash')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 let FETCH_LIMIT, COMMIT, VERBOSE
 
diff --git a/services/web/scripts/back_fill_dummy_doc_meta.js b/services/web/scripts/back_fill_dummy_doc_meta.js
index 9aad52107c..6ee9b2d737 100644
--- a/services/web/scripts/back_fill_dummy_doc_meta.js
+++ b/services/web/scripts/back_fill_dummy_doc_meta.js
@@ -1,5 +1,5 @@
 const { promisify } = require('util')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const {
   db,
   waitForDb,
diff --git a/services/web/scripts/delete_dangling_file_refs.js b/services/web/scripts/delete_dangling_file_refs.js
index ffad97a8b5..bb9ce12776 100644
--- a/services/web/scripts/delete_dangling_file_refs.js
+++ b/services/web/scripts/delete_dangling_file_refs.js
@@ -3,7 +3,7 @@
  */
 
 const minimist = require('minimist')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const { db, waitForDb } = require('../app/src/infrastructure/mongodb')
 const Errors = require('../app/src/Features/Errors/Errors')
diff --git a/services/web/scripts/delete_orphaned_chat_threads.js b/services/web/scripts/delete_orphaned_chat_threads.js
index d68417faf0..82f9984849 100644
--- a/services/web/scripts/delete_orphaned_chat_threads.js
+++ b/services/web/scripts/delete_orphaned_chat_threads.js
@@ -13,7 +13,7 @@ process.env.BATCH_SIZE = BATCH_SIZE
 process.env.MONGO_SOCKET_TIMEOUT =
   parseInt(process.env.MONGO_SOCKET_TIMEOUT, 10) || 600000
 
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { promiseMapWithLimit } = require('@overleaf/promise-utils')
 const { batchedUpdate } = require('./helpers/batchedUpdate')
 const ChatApiHandler = require('../app/src/Features/Chat/ChatApiHandler')
diff --git a/services/web/scripts/delete_orphaned_docs_online_check.js b/services/web/scripts/delete_orphaned_docs_online_check.js
index a94ff1cce5..d5cffe673c 100644
--- a/services/web/scripts/delete_orphaned_docs_online_check.js
+++ b/services/web/scripts/delete_orphaned_docs_online_check.js
@@ -1,6 +1,6 @@
 const DocstoreManager = require('../app/src/Features/Docstore/DocstoreManager')
 const { promisify } = require('util')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const {
   db,
   waitForDb,
diff --git a/services/web/scripts/delete_subscriptions.js b/services/web/scripts/delete_subscriptions.js
index 93f5842130..3baa79e63d 100644
--- a/services/web/scripts/delete_subscriptions.js
+++ b/services/web/scripts/delete_subscriptions.js
@@ -3,7 +3,7 @@ const SubscriptionUpdater = require('../app/src/Features/Subscription/Subscripti
 const minimist = require('minimist')
 
 const { waitForDb } = require('../app/src/infrastructure/mongodb')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const run = async () => {
   for (const id of ids) {
diff --git a/services/web/scripts/fix_malformed_filetree.js b/services/web/scripts/fix_malformed_filetree.js
index c4c5d15966..c8d2a669ec 100644
--- a/services/web/scripts/fix_malformed_filetree.js
+++ b/services/web/scripts/fix_malformed_filetree.js
@@ -5,7 +5,7 @@
  * This is the output format of each line in the find_malformed_filetrees.js
  * script.
  */
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { db, waitForDb } = require('../app/src/infrastructure/mongodb')
 const ProjectLocator = require('../app/src/Features/Project/ProjectLocator')
 
diff --git a/services/web/scripts/force_doc_flush.js b/services/web/scripts/force_doc_flush.js
index ed39265758..fa5127acd5 100644
--- a/services/web/scripts/force_doc_flush.js
+++ b/services/web/scripts/force_doc_flush.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { db, waitForDb } = require('../app/src/infrastructure/mongodb')
 const DocumentUpdaterHandler = require('../app/src/Features/DocumentUpdater/DocumentUpdaterHandler')
 
diff --git a/services/web/scripts/helpers/batchedUpdate.js b/services/web/scripts/helpers/batchedUpdate.js
index 8d0cc40f80..0bfa2b3c5c 100644
--- a/services/web/scripts/helpers/batchedUpdate.js
+++ b/services/web/scripts/helpers/batchedUpdate.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const {
   db,
   waitForDb,
diff --git a/services/web/scripts/oauth/register_client.js b/services/web/scripts/oauth/register_client.js
index cf21a2ef68..87fa7c0116 100644
--- a/services/web/scripts/oauth/register_client.js
+++ b/services/web/scripts/oauth/register_client.js
@@ -1,5 +1,5 @@
 const minimist = require('minimist')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { waitForDb, db } = require('../../app/src/infrastructure/mongodb')
 const {
   hashSecret,
diff --git a/services/web/scripts/remove_deleted_users_from_token_access_refs.js b/services/web/scripts/remove_deleted_users_from_token_access_refs.js
index 1acfd6c073..4b04912d46 100644
--- a/services/web/scripts/remove_deleted_users_from_token_access_refs.js
+++ b/services/web/scripts/remove_deleted_users_from_token_access_refs.js
@@ -1,6 +1,6 @@
 const { db, waitForDb } = require('../app/src/infrastructure/mongodb')
 const { batchedUpdate } = require('./helpers/batchedUpdate')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const minimist = require('minimist')
 const CollaboratorsHandler = require('../app/src/Features/Collaborators/CollaboratorsHandler')
 const {
diff --git a/services/web/scripts/set_tex_live_image.js b/services/web/scripts/set_tex_live_image.js
index e51dbee6f4..9ec0f7893a 100644
--- a/services/web/scripts/set_tex_live_image.js
+++ b/services/web/scripts/set_tex_live_image.js
@@ -1,5 +1,5 @@
 const Settings = require('@overleaf/settings')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { Project } = require('../app/src/models/Project')
 
 async function main() {
diff --git a/services/web/test/acceptance/bootstrap.js b/services/web/test/acceptance/bootstrap.js
index e65200eafe..03d956ef24 100644
--- a/services/web/test/acceptance/bootstrap.js
+++ b/services/web/test/acceptance/bootstrap.js
@@ -8,4 +8,4 @@ chai.use(require('chai-exclude'))
 chai.config.truncateThreshold = 0
 
 // ensure every ObjectId has the id string as a property for correct comparisons
-require('mongodb').ObjectId.cacheHexString = true
+require('mongodb-legacy').ObjectId.cacheHexString = true
diff --git a/services/web/test/acceptance/src/AuthenticationTests.js b/services/web/test/acceptance/src/AuthenticationTests.js
index f1523f01cb..4015b44fa2 100644
--- a/services/web/test/acceptance/src/AuthenticationTests.js
+++ b/services/web/test/acceptance/src/AuthenticationTests.js
@@ -1,5 +1,5 @@
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Settings = require('@overleaf/settings')
 const User = require('./helpers/User').promises
 
diff --git a/services/web/test/acceptance/src/ConvertArchivedState.js b/services/web/test/acceptance/src/ConvertArchivedState.js
index 79b662c6a8..23c61913d0 100644
--- a/services/web/test/acceptance/src/ConvertArchivedState.js
+++ b/services/web/test/acceptance/src/ConvertArchivedState.js
@@ -1,6 +1,6 @@
 const { expect } = require('chai')
 const { exec } = require('child_process')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const User = require('./helpers/User').promises
 
diff --git a/services/web/test/acceptance/src/DocUpdateTests.js b/services/web/test/acceptance/src/DocUpdateTests.js
index a3841209b6..62a6e48088 100644
--- a/services/web/test/acceptance/src/DocUpdateTests.js
+++ b/services/web/test/acceptance/src/DocUpdateTests.js
@@ -2,7 +2,7 @@ const User = require('./helpers/User')
 const request = require('./helpers/request')
 const { expect } = require('chai')
 const settings = require('@overleaf/settings')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('DocUpdate', function () {
   beforeEach(function (done) {
diff --git a/services/web/test/acceptance/src/MongoHelper.js b/services/web/test/acceptance/src/MongoHelper.js
index f9ce1665dd..8085e3b8f3 100644
--- a/services/web/test/acceptance/src/MongoHelper.js
+++ b/services/web/test/acceptance/src/MongoHelper.js
@@ -1,6 +1,6 @@
 const { expect } = require('chai')
 
-const { ObjectId: NativeObjectId } = require('mongodb')
+const { ObjectId: NativeObjectId } = require('mongodb-legacy')
 const { ObjectId: MongooseObjectId } = require('mongoose').mongo
 
 const { User: UserModel } = require('../../../app/src/models/User')
diff --git a/services/web/test/acceptance/src/ProjectCRUDTests.js b/services/web/test/acceptance/src/ProjectCRUDTests.js
index d250ef2f98..caa8b12b01 100644
--- a/services/web/test/acceptance/src/ProjectCRUDTests.js
+++ b/services/web/test/acceptance/src/ProjectCRUDTests.js
@@ -1,7 +1,7 @@
 const { expect } = require('chai')
 const User = require('./helpers/User').promises
 const { Project } = require('../../../app/src/models/Project')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const cheerio = require('cheerio')
 const { Subscription } = require('../../../app/src/models/Subscription')
 const Features = require('../../../app/src/infrastructure/Features')
diff --git a/services/web/test/acceptance/src/ProjectStructureTests.js b/services/web/test/acceptance/src/ProjectStructureTests.js
index b0c682e32c..e30fae0b48 100644
--- a/services/web/test/acceptance/src/ProjectStructureTests.js
+++ b/services/web/test/acceptance/src/ProjectStructureTests.js
@@ -1,5 +1,5 @@
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Path = require('path')
 const fs = require('fs')
 
diff --git a/services/web/test/acceptance/src/helpers/Institution.js b/services/web/test/acceptance/src/helpers/Institution.js
index 18ae896f0b..3f15193769 100644
--- a/services/web/test/acceptance/src/helpers/Institution.js
+++ b/services/web/test/acceptance/src/helpers/Institution.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const InstitutionModel =
   require('../../../../app/src/models/Institution').Institution
 
diff --git a/services/web/test/acceptance/src/helpers/Publisher.js b/services/web/test/acceptance/src/helpers/Publisher.js
index 12e94662d7..43a29ff29e 100644
--- a/services/web/test/acceptance/src/helpers/Publisher.js
+++ b/services/web/test/acceptance/src/helpers/Publisher.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const PublisherModel = require('../../../../app/src/models/Publisher').Publisher
 const { callbackifyClass } = require('@overleaf/promise-utils')
 
diff --git a/services/web/test/acceptance/src/helpers/RecurlySubscription.js b/services/web/test/acceptance/src/helpers/RecurlySubscription.js
index 99aa208273..c7878ffc0f 100644
--- a/services/web/test/acceptance/src/helpers/RecurlySubscription.js
+++ b/services/web/test/acceptance/src/helpers/RecurlySubscription.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Subscription = require('./Subscription')
 const MockRecurlyApiClass = require('../mocks/MockRecurlyApi')
 const RecurlyWrapper = require('../../../../app/src/Features/Subscription/RecurlyWrapper')
diff --git a/services/web/test/acceptance/src/helpers/UserHelper.js b/services/web/test/acceptance/src/helpers/UserHelper.js
index 661b27758e..a561e02f47 100644
--- a/services/web/test/acceptance/src/helpers/UserHelper.js
+++ b/services/web/test/acceptance/src/helpers/UserHelper.js
@@ -8,7 +8,7 @@ const UserUpdater = require('../../../../app/src/Features/User/UserUpdater')
 const moment = require('moment')
 const fetch = require('node-fetch')
 const { db } = require('../../../../app/src/infrastructure/mongodb')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const {
   UserAuditLogEntry,
 } = require('../../../../app/src/models/UserAuditLogEntry')
diff --git a/services/web/test/acceptance/src/mocks/MockProjectHistoryApi.js b/services/web/test/acceptance/src/mocks/MockProjectHistoryApi.js
index 8c0ba5c444..900ecb56d5 100644
--- a/services/web/test/acceptance/src/mocks/MockProjectHistoryApi.js
+++ b/services/web/test/acceptance/src/mocks/MockProjectHistoryApi.js
@@ -1,6 +1,6 @@
 const AbstractMockApi = require('./AbstractMockApi')
 const _ = require('lodash')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const {
   plainTextResponse,
 } = require('../../../../app/src/infrastructure/Response')
diff --git a/services/web/test/unit/bootstrap.js b/services/web/test/unit/bootstrap.js
index e0488c6b06..1e636166a7 100644
--- a/services/web/test/unit/bootstrap.js
+++ b/services/web/test/unit/bootstrap.js
@@ -23,7 +23,7 @@ chai.config.truncateThreshold = 0
 require('sinon-mongoose')
 
 // ensure every ObjectId has the id string as a property for correct comparisons
-require('mongodb').ObjectId.cacheHexString = true
+require('mongodb-legacy').ObjectId.cacheHexString = true
 
 /*
  * Global stubs
diff --git a/services/web/test/unit/src/Analytics/AnalyticsManagerTests.js b/services/web/test/unit/src/Analytics/AnalyticsManagerTests.js
index c21486dad2..5b027b292b 100644
--- a/services/web/test/unit/src/Analytics/AnalyticsManagerTests.js
+++ b/services/web/test/unit/src/Analytics/AnalyticsManagerTests.js
@@ -4,7 +4,7 @@ const sinon = require('sinon')
 const MockRequest = require('../helpers/MockRequest')
 const MockResponse = require('../helpers/MockResponse')
 const { assert } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = path.join(
   __dirname,
diff --git a/services/web/test/unit/src/Authentication/AuthenticationControllerTests.js b/services/web/test/unit/src/Authentication/AuthenticationControllerTests.js
index 31d3b7dfea..681bfa763b 100644
--- a/services/web/test/unit/src/Authentication/AuthenticationControllerTests.js
+++ b/services/web/test/unit/src/Authentication/AuthenticationControllerTests.js
@@ -6,7 +6,7 @@ const SandboxedModule = require('sandboxed-module')
 const tk = require('timekeeper')
 const MockRequest = require('../helpers/MockRequest')
 const MockResponse = require('../helpers/MockResponse')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const AuthenticationErrors = require('../../../../app/src/Features/Authentication/AuthenticationErrors')
 
 describe('AuthenticationController', function () {
diff --git a/services/web/test/unit/src/Authentication/AuthenticationManagerTests.js b/services/web/test/unit/src/Authentication/AuthenticationManagerTests.js
index 72fc14b98b..b2a3a6a22e 100644
--- a/services/web/test/unit/src/Authentication/AuthenticationManagerTests.js
+++ b/services/web/test/unit/src/Authentication/AuthenticationManagerTests.js
@@ -1,7 +1,7 @@
 const sinon = require('sinon')
 const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const AuthenticationErrors = require('../../../../app/src/Features/Authentication/AuthenticationErrors')
 const tk = require('timekeeper')
 
diff --git a/services/web/test/unit/src/Authentication/SessionManagerTests.js b/services/web/test/unit/src/Authentication/SessionManagerTests.js
index 08ede266f1..a64b2c44f4 100644
--- a/services/web/test/unit/src/Authentication/SessionManagerTests.js
+++ b/services/web/test/unit/src/Authentication/SessionManagerTests.js
@@ -4,7 +4,7 @@ const modulePath =
   '../../../../app/src/Features/Authentication/SessionManager.js'
 const SandboxedModule = require('sandboxed-module')
 const tk = require('timekeeper')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('SessionManager', function () {
   beforeEach(function () {
diff --git a/services/web/test/unit/src/Authorization/AuthorizationManagerTests.js b/services/web/test/unit/src/Authorization/AuthorizationManagerTests.js
index 5731f495f6..baa48001ea 100644
--- a/services/web/test/unit/src/Authorization/AuthorizationManagerTests.js
+++ b/services/web/test/unit/src/Authorization/AuthorizationManagerTests.js
@@ -6,7 +6,7 @@ const SandboxedModule = require('sandboxed-module')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 const PrivilegeLevels = require('../../../../app/src/Features/Authorization/PrivilegeLevels')
 const PublicAccessLevels = require('../../../../app/src/Features/Authorization/PublicAccessLevels')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('AuthorizationManager', function () {
   beforeEach(function () {
@@ -48,7 +48,7 @@ describe('AuthorizationManager', function () {
 
     this.AuthorizationManager = SandboxedModule.require(modulePath, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '../Collaborators/CollaboratorsGetter': this.CollaboratorsGetter,
         '../Collaborators/CollaboratorsHandler': this.CollaboratorsHandler,
         '../Project/ProjectGetter': this.ProjectGetter,
diff --git a/services/web/test/unit/src/Authorization/AuthorizationMiddlewareTests.js b/services/web/test/unit/src/Authorization/AuthorizationMiddlewareTests.js
index 16d0bd1059..6ae930048c 100644
--- a/services/web/test/unit/src/Authorization/AuthorizationMiddlewareTests.js
+++ b/services/web/test/unit/src/Authorization/AuthorizationMiddlewareTests.js
@@ -1,7 +1,7 @@
 const sinon = require('sinon')
 const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 
 const MODULE_PATH =
@@ -39,6 +39,7 @@ describe('AuthorizationMiddleware', function () {
       requires: {
         './AuthorizationManager': this.AuthorizationManager,
         '../Errors/HttpErrorHandler': this.HttpErrorHandler,
+        'mongodb-legacy': { ObjectId },
         '../Authentication/AuthenticationController':
           this.AuthenticationController,
         '../Authentication/SessionManager': this.SessionManager,
diff --git a/services/web/test/unit/src/Collaborators/CollaboratorsControllerTests.js b/services/web/test/unit/src/Collaborators/CollaboratorsControllerTests.js
index 25c9d38400..c5c423f20f 100644
--- a/services/web/test/unit/src/Collaborators/CollaboratorsControllerTests.js
+++ b/services/web/test/unit/src/Collaborators/CollaboratorsControllerTests.js
@@ -1,7 +1,7 @@
 const sinon = require('sinon')
 const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 const MockRequest = require('../helpers/MockRequest')
 const MockResponse = require('../helpers/MockResponse')
@@ -79,7 +79,7 @@ describe('CollaboratorsController', function () {
 
     this.CollaboratorsController = SandboxedModule.require(MODULE_PATH, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         './CollaboratorsHandler': this.CollaboratorsHandler,
         './CollaboratorsGetter': this.CollaboratorsGetter,
         './OwnershipTransferHandler': this.OwnershipTransferHandler,
diff --git a/services/web/test/unit/src/Collaborators/CollaboratorsGetterTests.js b/services/web/test/unit/src/Collaborators/CollaboratorsGetterTests.js
index ab00c03ce9..47f78c7666 100644
--- a/services/web/test/unit/src/Collaborators/CollaboratorsGetterTests.js
+++ b/services/web/test/unit/src/Collaborators/CollaboratorsGetterTests.js
@@ -2,7 +2,7 @@ const Path = require('path')
 const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { Project } = require('../helpers/models/Project')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 
@@ -53,7 +53,7 @@ describe('CollaboratorsGetter', function () {
     }
     this.CollaboratorsGetter = SandboxedModule.require(MODULE_PATH, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '../User/UserGetter': this.UserGetter,
         '../../models/Project': { Project },
         '../Project/ProjectGetter': this.ProjectGetter,
diff --git a/services/web/test/unit/src/Collaborators/CollaboratorsHandlerTests.js b/services/web/test/unit/src/Collaborators/CollaboratorsHandlerTests.js
index 0992a3ef3e..96ed8e52e2 100644
--- a/services/web/test/unit/src/Collaborators/CollaboratorsHandlerTests.js
+++ b/services/web/test/unit/src/Collaborators/CollaboratorsHandlerTests.js
@@ -5,7 +5,7 @@ const sinon = require('sinon')
 const { expect } = require('chai')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 const { Project } = require('../helpers/models/Project')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = path.join(
   __dirname,
diff --git a/services/web/test/unit/src/Collaborators/CollaboratorsInviteControllerTests.js b/services/web/test/unit/src/Collaborators/CollaboratorsInviteControllerTests.js
index c862c25fb6..87ec84929c 100644
--- a/services/web/test/unit/src/Collaborators/CollaboratorsInviteControllerTests.js
+++ b/services/web/test/unit/src/Collaborators/CollaboratorsInviteControllerTests.js
@@ -3,7 +3,7 @@ const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
 const MockRequest = require('../helpers/MockRequest')
 const MockResponse = require('../helpers/MockResponse')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 const _ = require('lodash')
 
diff --git a/services/web/test/unit/src/Collaborators/CollaboratorsInviteHandlerTests.js b/services/web/test/unit/src/Collaborators/CollaboratorsInviteHandlerTests.js
index 7f6f554f22..5c3ac49503 100644
--- a/services/web/test/unit/src/Collaborators/CollaboratorsInviteHandlerTests.js
+++ b/services/web/test/unit/src/Collaborators/CollaboratorsInviteHandlerTests.js
@@ -1,7 +1,7 @@
 const sinon = require('sinon')
 const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Crypto = require('crypto')
 
 const MODULE_PATH =
diff --git a/services/web/test/unit/src/Collaborators/OwnershipTransferHandlerTests.js b/services/web/test/unit/src/Collaborators/OwnershipTransferHandlerTests.js
index 112aa564ca..e61805565a 100644
--- a/services/web/test/unit/src/Collaborators/OwnershipTransferHandlerTests.js
+++ b/services/web/test/unit/src/Collaborators/OwnershipTransferHandlerTests.js
@@ -3,7 +3,7 @@ const sinon = require('sinon')
 const { expect } = require('chai')
 const PrivilegeLevels = require('../../../../app/src/Features/Authorization/PrivilegeLevels')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH =
   '../../../../app/src/Features/Collaborators/OwnershipTransferHandler'
diff --git a/services/web/test/unit/src/DocumentUpdater/DocumentUpdaterHandlerTests.js b/services/web/test/unit/src/DocumentUpdater/DocumentUpdaterHandlerTests.js
index 6b1d516547..bdfe6ab9db 100644
--- a/services/web/test/unit/src/DocumentUpdater/DocumentUpdaterHandlerTests.js
+++ b/services/web/test/unit/src/DocumentUpdater/DocumentUpdaterHandlerTests.js
@@ -1,7 +1,7 @@
 const sinon = require('sinon')
 const SandboxedModule = require('sandboxed-module')
 const path = require('path')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const modulePath = path.join(
   __dirname,
   '../../../../app/src/Features/DocumentUpdater/DocumentUpdaterHandler'
diff --git a/services/web/test/unit/src/Editor/EditorControllerTests.js b/services/web/test/unit/src/Editor/EditorControllerTests.js
index 4b453386bc..360ab077e1 100644
--- a/services/web/test/unit/src/Editor/EditorControllerTests.js
+++ b/services/web/test/unit/src/Editor/EditorControllerTests.js
@@ -21,7 +21,7 @@ const modulePath = require('path').join(
 )
 const MockClient = require('../helpers/MockClient')
 const assert = require('assert')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('EditorController', function () {
   beforeEach(function () {
diff --git a/services/web/test/unit/src/Editor/EditorHttpControllerTests.js b/services/web/test/unit/src/Editor/EditorHttpControllerTests.js
index b80c7dd6a8..f07a0bd48b 100644
--- a/services/web/test/unit/src/Editor/EditorHttpControllerTests.js
+++ b/services/web/test/unit/src/Editor/EditorHttpControllerTests.js
@@ -2,7 +2,7 @@
 const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 const MockRequest = require('../helpers/MockRequest')
 const MockResponse = require('../helpers/MockResponse')
diff --git a/services/web/test/unit/src/History/HistoryManagerTests.js b/services/web/test/unit/src/History/HistoryManagerTests.js
index 5b04e51063..e424b14e1d 100644
--- a/services/web/test/unit/src/History/HistoryManagerTests.js
+++ b/services/web/test/unit/src/History/HistoryManagerTests.js
@@ -1,7 +1,7 @@
 const { expect } = require('chai')
 const sinon = require('sinon')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = '../../../../app/src/Features/History/HistoryManager'
 
diff --git a/services/web/test/unit/src/InactiveData/InactiveProjectManagerTests.js b/services/web/test/unit/src/InactiveData/InactiveProjectManagerTests.js
index 470e9eb2ed..32d402a7eb 100644
--- a/services/web/test/unit/src/InactiveData/InactiveProjectManagerTests.js
+++ b/services/web/test/unit/src/InactiveData/InactiveProjectManagerTests.js
@@ -5,7 +5,7 @@ const modulePath = path.join(
   __dirname,
   '../../../../app/src/Features/InactiveData/InactiveProjectManager'
 )
-const { ObjectId, ReadPreference } = require('mongodb')
+const { ObjectId, ReadPreference } = require('mongodb-legacy')
 const { expect } = require('chai')
 
 describe('InactiveProjectManager', function () {
@@ -26,7 +26,7 @@ describe('InactiveProjectManager', function () {
     this.ProjectGetter = { promises: { getProject: sinon.stub() } }
     this.InactiveProjectManager = SandboxedModule.require(modulePath, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '@overleaf/settings': this.settings,
         '../Docstore/DocstoreManager': this.DocstoreManager,
         '../Project/ProjectUpdateHandler': this.ProjectUpdateHandler,
diff --git a/services/web/test/unit/src/Institutions/InstitutionsManagerTests.js b/services/web/test/unit/src/Institutions/InstitutionsManagerTests.js
index db11b84e28..4811962eba 100644
--- a/services/web/test/unit/src/Institutions/InstitutionsManagerTests.js
+++ b/services/web/test/unit/src/Institutions/InstitutionsManagerTests.js
@@ -2,7 +2,7 @@ const SandboxedModule = require('sandboxed-module')
 const path = require('path')
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const modulePath = path.join(
   __dirname,
   '../../../../app/src/Features/Institutions/InstitutionsManager'
@@ -136,7 +136,7 @@ describe('InstitutionsManager', function () {
         '../Subscription/SubscriptionLocator': this.SubscriptionLocator,
         '../../models/Institution': this.InstitutionModel,
         '../../models/Subscription': SubscriptionModel,
-        mongodb: this.Mongo,
+        'mongodb-legacy': this.Mongo,
         '@overleaf/settings': {
           features: { professional: { 'test-feature': true } },
         },
diff --git a/services/web/test/unit/src/Project/FolderStructureBuilderTests.js b/services/web/test/unit/src/Project/FolderStructureBuilderTests.js
index fc09bfb056..0763ec74dc 100644
--- a/services/web/test/unit/src/Project/FolderStructureBuilderTests.js
+++ b/services/web/test/unit/src/Project/FolderStructureBuilderTests.js
@@ -1,6 +1,6 @@
 const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const sinon = require('sinon')
 
 const MODULE_PATH =
@@ -8,7 +8,9 @@ const MODULE_PATH =
 
 describe('FolderStructureBuilder', function () {
   beforeEach(function () {
-    this.FolderStructureBuilder = SandboxedModule.require(MODULE_PATH, {})
+    this.FolderStructureBuilder = SandboxedModule.require(MODULE_PATH, {
+      requires: { 'mongodb-legacy': { ObjectId } },
+    })
   })
 
   describe('buildFolderStructure', function () {
diff --git a/services/web/test/unit/src/Project/ProjectCollabratecDetailsTest.js b/services/web/test/unit/src/Project/ProjectCollabratecDetailsTest.js
index e4f827bc3b..d2de69ec91 100644
--- a/services/web/test/unit/src/Project/ProjectCollabratecDetailsTest.js
+++ b/services/web/test/unit/src/Project/ProjectCollabratecDetailsTest.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Path = require('path')
 const SandboxedModule = require('sandboxed-module')
 const { expect } = require('chai')
@@ -19,7 +19,7 @@ describe('ProjectCollabratecDetailsHandler', function () {
       modulePath,
       {
         requires: {
-          mongodb: { ObjectId },
+          'mongodb-legacy': { ObjectId },
           '../../models/Project': { Project: this.ProjectModel },
         },
       }
diff --git a/services/web/test/unit/src/Project/ProjectControllerTests.js b/services/web/test/unit/src/Project/ProjectControllerTests.js
index adfa4c1165..c210da3b42 100644
--- a/services/web/test/unit/src/Project/ProjectControllerTests.js
+++ b/services/web/test/unit/src/Project/ProjectControllerTests.js
@@ -2,7 +2,7 @@ const SandboxedModule = require('sandboxed-module')
 const path = require('path')
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = path.join(
   __dirname,
@@ -203,7 +203,7 @@ describe('ProjectController', function () {
 
     this.ProjectController = SandboxedModule.require(MODULE_PATH, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '@overleaf/settings': this.settings,
         '@overleaf/metrics': this.Metrics,
         '../SplitTests/SplitTestHandler': this.SplitTestHandler,
diff --git a/services/web/test/unit/src/Project/ProjectDeleterTests.js b/services/web/test/unit/src/Project/ProjectDeleterTests.js
index e0d07d93b9..e5dc2ea2d6 100644
--- a/services/web/test/unit/src/Project/ProjectDeleterTests.js
+++ b/services/web/test/unit/src/Project/ProjectDeleterTests.js
@@ -6,7 +6,7 @@ const tk = require('timekeeper')
 const moment = require('moment')
 const { Project } = require('../helpers/models/Project')
 const { DeletedProject } = require('../helpers/models/DeletedProject')
-const { ObjectId, ReadPreference } = require('mongodb')
+const { ObjectId, ReadPreference } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 
 describe('ProjectDeleter', function () {
diff --git a/services/web/test/unit/src/Project/ProjectDetailsHandlerTests.js b/services/web/test/unit/src/Project/ProjectDetailsHandlerTests.js
index 7a429e75f8..51cdddd9eb 100644
--- a/services/web/test/unit/src/Project/ProjectDetailsHandlerTests.js
+++ b/services/web/test/unit/src/Project/ProjectDetailsHandlerTests.js
@@ -1,7 +1,7 @@
 const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 const ProjectHelper = require('../../../../app/src/Features/Project/ProjectHelper')
 
diff --git a/services/web/test/unit/src/Project/ProjectDuplicatorTests.js b/services/web/test/unit/src/Project/ProjectDuplicatorTests.js
index 446d95047f..44c3914062 100644
--- a/services/web/test/unit/src/Project/ProjectDuplicatorTests.js
+++ b/services/web/test/unit/src/Project/ProjectDuplicatorTests.js
@@ -1,7 +1,7 @@
 const { expect } = require('chai')
 const sinon = require('sinon')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = '../../../../app/src/Features/Project/ProjectDuplicator.js'
 
diff --git a/services/web/test/unit/src/Project/ProjectEntityMongoUpdateHandlerTests.js b/services/web/test/unit/src/Project/ProjectEntityMongoUpdateHandlerTests.js
index 1464ed3463..53b459ff05 100644
--- a/services/web/test/unit/src/Project/ProjectEntityMongoUpdateHandlerTests.js
+++ b/services/web/test/unit/src/Project/ProjectEntityMongoUpdateHandlerTests.js
@@ -2,7 +2,7 @@ const { expect } = require('chai')
 const sinon = require('sinon')
 const tk = require('timekeeper')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const SandboxedModule = require('sandboxed-module')
 const { DeletedFile } = require('../helpers/models/DeletedFile')
 const { Project } = require('../helpers/models/Project')
@@ -191,7 +191,7 @@ describe('ProjectEntityMongoUpdateHandler', function () {
 
     this.subject = SandboxedModule.require(MODULE_PATH, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '@overleaf/settings': this.Settings,
         '../Cooldown/CooldownManager': this.CooldownManager,
         '../../models/Folder': { Folder: this.FolderModel },
diff --git a/services/web/test/unit/src/Project/ProjectEntityUpdateHandlerTests.js b/services/web/test/unit/src/Project/ProjectEntityUpdateHandlerTests.js
index d00ca2a1e4..400ade10a4 100644
--- a/services/web/test/unit/src/Project/ProjectEntityUpdateHandlerTests.js
+++ b/services/web/test/unit/src/Project/ProjectEntityUpdateHandlerTests.js
@@ -2,7 +2,7 @@ const { expect } = require('chai')
 const sinon = require('sinon')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH =
   '../../../../app/src/Features/Project/ProjectEntityUpdateHandler'
diff --git a/services/web/test/unit/src/Project/ProjectGetterTests.js b/services/web/test/unit/src/Project/ProjectGetterTests.js
index c2e3512ed9..1aecd4ab11 100644
--- a/services/web/test/unit/src/Project/ProjectGetterTests.js
+++ b/services/web/test/unit/src/Project/ProjectGetterTests.js
@@ -2,7 +2,7 @@ const sinon = require('sinon')
 const { expect } = require('chai')
 const modulePath = '../../../../app/src/Features/Project/ProjectGetter.js'
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('ProjectGetter', function () {
   beforeEach(function () {
diff --git a/services/web/test/unit/src/Project/ProjectHelperTests.js b/services/web/test/unit/src/Project/ProjectHelperTests.js
index e08c7865e7..7dc2343313 100644
--- a/services/web/test/unit/src/Project/ProjectHelperTests.js
+++ b/services/web/test/unit/src/Project/ProjectHelperTests.js
@@ -1,6 +1,6 @@
 const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = '../../../../app/src/Features/Project/ProjectHelper.js'
 
@@ -37,7 +37,7 @@ describe('ProjectHelper', function () {
 
     this.ProjectHelper = SandboxedModule.require(MODULE_PATH, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '@overleaf/settings': this.Settings,
       },
     })
diff --git a/services/web/test/unit/src/Project/ProjectListControllerTests.js b/services/web/test/unit/src/Project/ProjectListControllerTests.js
index 51aef2552e..0813200877 100644
--- a/services/web/test/unit/src/Project/ProjectListControllerTests.js
+++ b/services/web/test/unit/src/Project/ProjectListControllerTests.js
@@ -2,7 +2,7 @@ const SandboxedModule = require('sandboxed-module')
 const path = require('path')
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 
 const MODULE_PATH = path.join(
@@ -141,7 +141,7 @@ describe('ProjectListController', function () {
 
     this.ProjectListController = SandboxedModule.require(MODULE_PATH, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '@overleaf/settings': this.settings,
         '@overleaf/metrics': this.Metrics,
         '../SplitTests/SplitTestHandler': this.SplitTestHandler,
diff --git a/services/web/test/unit/src/Project/ProjectOptionsHandlerTests.js b/services/web/test/unit/src/Project/ProjectOptionsHandlerTests.js
index 75edc62c10..12d4c70a20 100644
--- a/services/web/test/unit/src/Project/ProjectOptionsHandlerTests.js
+++ b/services/web/test/unit/src/Project/ProjectOptionsHandlerTests.js
@@ -17,7 +17,7 @@ const { expect } = require('chai')
 const modulePath =
   '../../../../app/src/Features/Project/ProjectOptionsHandler.js'
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('ProjectOptionsHandler', function () {
   const projectId = '4eecaffcbffa66588e000008'
diff --git a/services/web/test/unit/src/Project/ProjectRootDocManagerTests.js b/services/web/test/unit/src/Project/ProjectRootDocManagerTests.js
index ab35f7c5bc..1e37ee1380 100644
--- a/services/web/test/unit/src/Project/ProjectRootDocManagerTests.js
+++ b/services/web/test/unit/src/Project/ProjectRootDocManagerTests.js
@@ -12,7 +12,7 @@
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const sinon = require('sinon')
 const modulePath =
   '../../../../app/src/Features/Project/ProjectRootDocManager.js'
diff --git a/services/web/test/unit/src/SplitTests/SplitTestHandlerTests.js b/services/web/test/unit/src/SplitTests/SplitTestHandlerTests.js
index 7a46ffabfd..5fed9b0271 100644
--- a/services/web/test/unit/src/SplitTests/SplitTestHandlerTests.js
+++ b/services/web/test/unit/src/SplitTests/SplitTestHandlerTests.js
@@ -1,7 +1,7 @@
 const Path = require('path')
 const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { assert, expect } = require('chai')
 const MockRequest = require('../helpers/MockRequest')
 const MockResponse = require('../helpers/MockResponse')
diff --git a/services/web/test/unit/src/SplitTests/SplitTestSessionHandlerTests.js b/services/web/test/unit/src/SplitTests/SplitTestSessionHandlerTests.js
index ac1159a78d..026cddefae 100644
--- a/services/web/test/unit/src/SplitTests/SplitTestSessionHandlerTests.js
+++ b/services/web/test/unit/src/SplitTests/SplitTestSessionHandlerTests.js
@@ -2,6 +2,7 @@ const Path = require('path')
 const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
 const { expect } = require('chai')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = Path.join(
   __dirname,
@@ -59,6 +60,7 @@ describe('SplitTestSessionHandler', function () {
         './SplitTestCache': this.SplitTestCache,
         './SplitTestUserGetter': this.SplitTestUserGetter,
         '@overleaf/metrics': this.Metrics,
+        'mongodb-legacy': { ObjectId },
       },
     })
   })
diff --git a/services/web/test/unit/src/Subscription/FeaturesUpdaterTests.js b/services/web/test/unit/src/Subscription/FeaturesUpdaterTests.js
index 3c97b30bf9..2f891f9cca 100644
--- a/services/web/test/unit/src/Subscription/FeaturesUpdaterTests.js
+++ b/services/web/test/unit/src/Subscription/FeaturesUpdaterTests.js
@@ -1,7 +1,7 @@
 const SandboxedModule = require('sandboxed-module')
 const { expect } = require('chai')
 const sinon = require('sinon')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = '../../../../app/src/Features/Subscription/FeaturesUpdater'
 
diff --git a/services/web/test/unit/src/Subscription/RecurlyEventHandlerTests.js b/services/web/test/unit/src/Subscription/RecurlyEventHandlerTests.js
index c88ae46745..55d7cab65d 100644
--- a/services/web/test/unit/src/Subscription/RecurlyEventHandlerTests.js
+++ b/services/web/test/unit/src/Subscription/RecurlyEventHandlerTests.js
@@ -1,4 +1,5 @@
 const SandboxedModule = require('sandboxed-module')
+const { ObjectId } = require('mongodb-legacy')
 const sinon = require('sinon')
 const modulePath =
   '../../../../app/src/Features/Subscription/RecurlyEventHandler'
@@ -27,6 +28,7 @@ describe('RecurlyEventHandler', function () {
 
     this.RecurlyEventHandler = SandboxedModule.require(modulePath, {
       requires: {
+        'mongodb-legacy': { ObjectId },
         './SubscriptionEmailHandler': (this.SubscriptionEmailHandler = {
           sendTrialOnboardingEmail: sinon.stub(),
         }),
diff --git a/services/web/test/unit/src/Subscription/SubscriptionUpdaterTests.js b/services/web/test/unit/src/Subscription/SubscriptionUpdaterTests.js
index 834d0a5d21..d478ad8afe 100644
--- a/services/web/test/unit/src/Subscription/SubscriptionUpdaterTests.js
+++ b/services/web/test/unit/src/Subscription/SubscriptionUpdaterTests.js
@@ -3,7 +3,7 @@ const sinon = require('sinon')
 const modulePath =
   '../../../../app/src/Features/Subscription/SubscriptionUpdater'
 const { assert, expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('SubscriptionUpdater', function () {
   beforeEach(function () {
diff --git a/services/web/test/unit/src/Subscription/TeamInvitesHandlerTests.js b/services/web/test/unit/src/Subscription/TeamInvitesHandlerTests.js
index cbd2a6fe0a..f726bdb9cb 100644
--- a/services/web/test/unit/src/Subscription/TeamInvitesHandlerTests.js
+++ b/services/web/test/unit/src/Subscription/TeamInvitesHandlerTests.js
@@ -4,7 +4,7 @@ const { expect } = require('chai')
 const modulePath =
   '../../../../app/src/Features/Subscription/TeamInvitesHandler'
 
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 
 describe('TeamInvitesHandler', function () {
@@ -111,7 +111,7 @@ describe('TeamInvitesHandler', function () {
 
     this.TeamInvitesHandler = SandboxedModule.require(modulePath, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         crypto: this.crypto,
         '@overleaf/settings': { siteUrl: 'http://example.com' },
         '../../models/TeamInvite': { TeamInvite: (this.TeamInvite = {}) },
diff --git a/services/web/test/unit/src/Tags/TagsHandlerTests.js b/services/web/test/unit/src/Tags/TagsHandlerTests.js
index aa9e4bb363..f30a649681 100644
--- a/services/web/test/unit/src/Tags/TagsHandlerTests.js
+++ b/services/web/test/unit/src/Tags/TagsHandlerTests.js
@@ -2,7 +2,7 @@ const SandboxedModule = require('sandboxed-module')
 const { expect } = require('chai')
 const sinon = require('sinon')
 const { Tag } = require('../helpers/models/Tag')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const modulePath = require('path').join(
   __dirname,
   '../../../../app/src/Features/Tags/TagsHandler.js'
diff --git a/services/web/test/unit/src/ThirdPartyDataStore/TpdsControllerTests.js b/services/web/test/unit/src/ThirdPartyDataStore/TpdsControllerTests.js
index 848f24f0ff..65db57e32e 100644
--- a/services/web/test/unit/src/ThirdPartyDataStore/TpdsControllerTests.js
+++ b/services/web/test/unit/src/ThirdPartyDataStore/TpdsControllerTests.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
diff --git a/services/web/test/unit/src/ThirdPartyDataStore/TpdsProjectFlusherTests.js b/services/web/test/unit/src/ThirdPartyDataStore/TpdsProjectFlusherTests.js
index dd9e24d080..50f8b18ec9 100644
--- a/services/web/test/unit/src/ThirdPartyDataStore/TpdsProjectFlusherTests.js
+++ b/services/web/test/unit/src/ThirdPartyDataStore/TpdsProjectFlusherTests.js
@@ -1,7 +1,7 @@
 const { expect } = require('chai')
 const sinon = require('sinon')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { Project } = require('../helpers/models/Project')
 
 const MODULE_PATH =
diff --git a/services/web/test/unit/src/ThirdPartyDataStore/TpdsUpdateHandlerTests.js b/services/web/test/unit/src/ThirdPartyDataStore/TpdsUpdateHandlerTests.js
index a305e9095c..bf2d376158 100644
--- a/services/web/test/unit/src/ThirdPartyDataStore/TpdsUpdateHandlerTests.js
+++ b/services/web/test/unit/src/ThirdPartyDataStore/TpdsUpdateHandlerTests.js
@@ -1,7 +1,7 @@
 const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Errors = require('../../../../app/src/Features/Errors/Errors')
 
 const MODULE_PATH =
diff --git a/services/web/test/unit/src/ThirdPartyDataStore/TpdsUpdateSenderTests.js b/services/web/test/unit/src/ThirdPartyDataStore/TpdsUpdateSenderTests.js
index 70c48d8255..d394399157 100644
--- a/services/web/test/unit/src/ThirdPartyDataStore/TpdsUpdateSenderTests.js
+++ b/services/web/test/unit/src/ThirdPartyDataStore/TpdsUpdateSenderTests.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const SandboxedModule = require('sandboxed-module')
 const path = require('path')
 const sinon = require('sinon')
@@ -72,7 +72,7 @@ describe('TpdsUpdateSender', function () {
     }
     this.TpdsUpdateSender = SandboxedModule.require(modulePath, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '@overleaf/settings': this.settings,
         '@overleaf/fetch-utils': this.FetchUtils,
         '../Collaborators/CollaboratorsGetter': this.CollaboratorsGetter,
diff --git a/services/web/test/unit/src/ThirdPartyDataStore/UpdateMergerTests.js b/services/web/test/unit/src/ThirdPartyDataStore/UpdateMergerTests.js
index 3591775dad..1426d48110 100644
--- a/services/web/test/unit/src/ThirdPartyDataStore/UpdateMergerTests.js
+++ b/services/web/test/unit/src/ThirdPartyDataStore/UpdateMergerTests.js
@@ -2,7 +2,7 @@ const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
 const { expect } = require('chai')
 const { Writable } = require('stream')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH =
   '../../../../app/src/Features/ThirdPartyDataStore/UpdateMerger.js'
diff --git a/services/web/test/unit/src/TokenAccess/TokenAccessControllerTests.js b/services/web/test/unit/src/TokenAccess/TokenAccessControllerTests.js
index 4dcc439b4d..9749cd14a1 100644
--- a/services/web/test/unit/src/TokenAccess/TokenAccessControllerTests.js
+++ b/services/web/test/unit/src/TokenAccess/TokenAccessControllerTests.js
@@ -1,7 +1,7 @@
 const SandboxedModule = require('sandboxed-module')
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const MockRequest = require('../helpers/MockRequest')
 const MockResponse = require('../helpers/MockResponse')
 const PrivilegeLevels = require('../../../../app/src/Features/Authorization/PrivilegeLevels')
diff --git a/services/web/test/unit/src/TokenAccess/TokenAccessHandlerTests.js b/services/web/test/unit/src/TokenAccess/TokenAccessHandlerTests.js
index b6c0128043..1fffb4c3fb 100644
--- a/services/web/test/unit/src/TokenAccess/TokenAccessHandlerTests.js
+++ b/services/web/test/unit/src/TokenAccess/TokenAccessHandlerTests.js
@@ -6,7 +6,7 @@ const modulePath = path.join(
   '../../../../app/src/Features/TokenAccess/TokenAccessHandler'
 )
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('TokenAccessHandler', function () {
   beforeEach(function () {
@@ -21,7 +21,7 @@ describe('TokenAccessHandler', function () {
     this.req = {}
     this.TokenAccessHandler = SandboxedModule.require(modulePath, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '../../models/Project': { Project: (this.Project = {}) },
         '@overleaf/metrics': (this.Metrics = { inc: sinon.stub() }),
         '@overleaf/settings': (this.settings = {}),
diff --git a/services/web/test/unit/src/Tutorial/TutorialHandlerTests.js b/services/web/test/unit/src/Tutorial/TutorialHandlerTests.js
index ad22fb413d..88a0d0cc2c 100644
--- a/services/web/test/unit/src/Tutorial/TutorialHandlerTests.js
+++ b/services/web/test/unit/src/Tutorial/TutorialHandlerTests.js
@@ -1,7 +1,7 @@
 const SandboxedModule = require('sandboxed-module')
 const { expect } = require('chai')
 const sinon = require('sinon')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH = '../../../../app/src/Features/Tutorial/TutorialHandler'
 
diff --git a/services/web/test/unit/src/Uploads/FileSystemImportManagerTests.js b/services/web/test/unit/src/Uploads/FileSystemImportManagerTests.js
index d42388bf04..ba219f3c68 100644
--- a/services/web/test/unit/src/Uploads/FileSystemImportManagerTests.js
+++ b/services/web/test/unit/src/Uploads/FileSystemImportManagerTests.js
@@ -2,7 +2,7 @@ const sinon = require('sinon')
 const { expect } = require('chai')
 const mockFs = require('mock-fs')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const Settings = require('@overleaf/settings')
 
 const MODULE_PATH =
diff --git a/services/web/test/unit/src/Uploads/ProjectUploadManagerTests.js b/services/web/test/unit/src/Uploads/ProjectUploadManagerTests.js
index a2f9e522a5..493f242c9c 100644
--- a/services/web/test/unit/src/Uploads/ProjectUploadManagerTests.js
+++ b/services/web/test/unit/src/Uploads/ProjectUploadManagerTests.js
@@ -2,7 +2,7 @@ const sinon = require('sinon')
 const { expect } = require('chai')
 const timekeeper = require('timekeeper')
 const SandboxedModule = require('sandboxed-module')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 const MODULE_PATH =
   '../../../../app/src/Features/Uploads/ProjectUploadManager.js'
diff --git a/services/web/test/unit/src/User/SAMLIdentityManagerTests.js b/services/web/test/unit/src/User/SAMLIdentityManagerTests.js
index 8b00392901..5668da363c 100644
--- a/services/web/test/unit/src/User/SAMLIdentityManagerTests.js
+++ b/services/web/test/unit/src/User/SAMLIdentityManagerTests.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const sinon = require('sinon')
 const { expect } = require('chai')
 const SandboxedModule = require('sandboxed-module')
@@ -43,6 +43,7 @@ describe('SAMLIdentityManager', function () {
     }
     this.SAMLIdentityManager = SandboxedModule.require(modulePath, {
       requires: {
+        'mongodb-legacy': { ObjectId },
         '../Email/EmailHandler': (this.EmailHandler = {
           sendEmail: sinon.stub().yields(),
         }),
diff --git a/services/web/test/unit/src/User/UserAuditLogHandlerTests.js b/services/web/test/unit/src/User/UserAuditLogHandlerTests.js
index 9c92e148ce..3bad884520 100644
--- a/services/web/test/unit/src/User/UserAuditLogHandlerTests.js
+++ b/services/web/test/unit/src/User/UserAuditLogHandlerTests.js
@@ -1,6 +1,6 @@
 const sinon = require('sinon')
 const { expect } = require('chai')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const SandboxedModule = require('sandboxed-module')
 const { UserAuditLogEntry } = require('../helpers/models/UserAuditLogEntry')
 
diff --git a/services/web/test/unit/src/User/UserGetterTests.js b/services/web/test/unit/src/User/UserGetterTests.js
index 36304b38a3..1f6a7bb2e7 100644
--- a/services/web/test/unit/src/User/UserGetterTests.js
+++ b/services/web/test/unit/src/User/UserGetterTests.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const SandboxedModule = require('sandboxed-module')
 const assert = require('assert')
 const moment = require('moment')
diff --git a/services/web/test/unit/src/User/UserInfoControllerTests.js b/services/web/test/unit/src/User/UserInfoControllerTests.js
index 89e1f65242..022dbd2d7f 100644
--- a/services/web/test/unit/src/User/UserInfoControllerTests.js
+++ b/services/web/test/unit/src/User/UserInfoControllerTests.js
@@ -4,7 +4,7 @@ const modulePath = '../../../../app/src/Features/User/UserInfoController.js'
 const SandboxedModule = require('sandboxed-module')
 const MockResponse = require('../helpers/MockResponse')
 const MockRequest = require('../helpers/MockRequest')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 
 describe('UserInfoController', function () {
   beforeEach(function () {
@@ -14,7 +14,7 @@ describe('UserInfoController', function () {
 
     this.UserInfoController = SandboxedModule.require(modulePath, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         './UserGetter': this.UserGetter,
         './UserUpdater': this.UserUpdater,
         './UserDeleter': this.UserDeleter,
diff --git a/services/web/test/unit/src/User/UserUpdaterTests.js b/services/web/test/unit/src/User/UserUpdaterTests.js
index 79eacdee27..f609530e33 100644
--- a/services/web/test/unit/src/User/UserUpdaterTests.js
+++ b/services/web/test/unit/src/User/UserUpdaterTests.js
@@ -2,7 +2,7 @@ const { setTimeout } = require('timers/promises')
 const SandboxedModule = require('sandboxed-module')
 const path = require('path')
 const sinon = require('sinon')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const tk = require('timekeeper')
 const { expect } = require('chai')
 const { normalizeQuery } = require('../../../../app/src/Features/Helpers/Mongo')
diff --git a/services/web/test/unit/src/UserMembership/UserMembershipHandlerTests.js b/services/web/test/unit/src/UserMembership/UserMembershipHandlerTests.js
index b29fb76fd7..f7b665aecd 100644
--- a/services/web/test/unit/src/UserMembership/UserMembershipHandlerTests.js
+++ b/services/web/test/unit/src/UserMembership/UserMembershipHandlerTests.js
@@ -1,7 +1,7 @@
 const { expect } = require('chai')
 const sinon = require('sinon')
 const assertCalledWith = sinon.assert.calledWith
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const modulePath =
   '../../../../app/src/Features/UserMembership/UserMembershipHandler'
 const SandboxedModule = require('sandboxed-module')
@@ -77,7 +77,7 @@ describe('UserMembershipHandler', function () {
     }
     this.UserMembershipHandler = SandboxedModule.require(modulePath, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         './UserMembershipErrors': {
           UserIsManagerError,
           UserNotFoundError,
diff --git a/services/web/test/unit/src/UserMembership/UserMembershipViewModelTests.js b/services/web/test/unit/src/UserMembership/UserMembershipViewModelTests.js
index bf1500ec44..a8ce9d158f 100644
--- a/services/web/test/unit/src/UserMembership/UserMembershipViewModelTests.js
+++ b/services/web/test/unit/src/UserMembership/UserMembershipViewModelTests.js
@@ -14,7 +14,7 @@ const { expect } = require('chai')
 const sinon = require('sinon')
 const assertCalledWith = sinon.assert.calledWith
 const assertNotCalled = sinon.assert.notCalled
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const modulePath =
   '../../../../app/src/Features/UserMembership/UserMembershipViewModel'
 const SandboxedModule = require('sandboxed-module')
@@ -28,7 +28,7 @@ describe('UserMembershipViewModel', function () {
     this.UserGetter = { getUser: sinon.stub() }
     this.UserMembershipViewModel = SandboxedModule.require(modulePath, {
       requires: {
-        mongodb: { ObjectId },
+        'mongodb-legacy': { ObjectId },
         '../Helpers/Mongo': { isObjectIdInstance, normalizeQuery },
         '../User/UserGetter': this.UserGetter,
       },
diff --git a/services/web/test/unit/src/UserMembership/UserMembershipsHandlerTests.js b/services/web/test/unit/src/UserMembership/UserMembershipsHandlerTests.js
index f0c11c7044..f0e8f42c67 100644
--- a/services/web/test/unit/src/UserMembership/UserMembershipsHandlerTests.js
+++ b/services/web/test/unit/src/UserMembership/UserMembershipsHandlerTests.js
@@ -12,7 +12,7 @@
  */
 const sinon = require('sinon')
 const assertCalledWith = sinon.assert.calledWith
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const modulePath =
   '../../../../app/src/Features/UserMembership/UserMembershipsHandler'
 const SandboxedModule = require('sandboxed-module')
diff --git a/services/web/test/unit/src/infrastructure/MongodbTests.js b/services/web/test/unit/src/infrastructure/MongodbTests.js
index 9c87c6ce8a..65cab5f7b6 100644
--- a/services/web/test/unit/src/infrastructure/MongodbTests.js
+++ b/services/web/test/unit/src/infrastructure/MongodbTests.js
@@ -1,4 +1,4 @@
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { expect } = require('chai')
 const sinon = require('sinon')
 
diff --git a/services/web/test/unit/src/infrastructure/ValidationTests.js b/services/web/test/unit/src/infrastructure/ValidationTests.js
index 1b7d8955f6..e01dff8df8 100644
--- a/services/web/test/unit/src/infrastructure/ValidationTests.js
+++ b/services/web/test/unit/src/infrastructure/ValidationTests.js
@@ -1,5 +1,5 @@
 const { Joi } = require('../../../../app/src/infrastructure/Validation')
-const { ObjectId } = require('mongodb')
+const { ObjectId } = require('mongodb-legacy')
 const { expect } = require('chai')
 const { ValidationError } = require('joi')