diff --git a/services/chat/.eslintrc b/services/chat/.eslintrc
index 502d2d98d1..76dad1561d 100644
--- a/services/chat/.eslintrc
+++ b/services/chat/.eslintrc
@@ -1,7 +1,6 @@
 // this file was auto-generated, do not edit it directly.
 // instead run bin/update_build_scripts from
 // https://github.com/sharelatex/sharelatex-dev-environment
-// Version: 1.4.0
 {
   "extends": [
     "standard",
@@ -9,7 +8,7 @@
     "prettier/standard"
   ],
   "parserOptions": {
-    "ecmaVersion": 2017
+    "ecmaVersion": 2018
   },
   "plugins": [
     "mocha",
diff --git a/services/chat/.github/dependabot.yml b/services/chat/.github/dependabot.yml
new file mode 100644
index 0000000000..c6f98d843d
--- /dev/null
+++ b/services/chat/.github/dependabot.yml
@@ -0,0 +1,17 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+
+    pull-request-branch-name:
+      # Separate sections of the branch name with a hyphen
+      # Docker images use the branch name and do not support slashes in tags
+      # https://github.com/overleaf/google-ops/issues/822
+      # https://docs.github.com/en/github/administering-a-repository/configuration-options-for-dependency-updates#pull-request-branch-nameseparator
+      separator: "-"
+
+    # Block informal upgrades -- security upgrades use a separate queue.
+    # https://docs.github.com/en/github/administering-a-repository/configuration-options-for-dependency-updates#open-pull-requests-limit
+    open-pull-requests-limit: 0
diff --git a/services/chat/.gitignore b/services/chat/.gitignore
index c689cc0f57..f0cf94b147 100644
--- a/services/chat/.gitignore
+++ b/services/chat/.gitignore
@@ -7,3 +7,6 @@ node_modules/
 plato/
 
 **/*.map
+
+# managed by dev-environment$ bin/update_build_scripts
+.npmrc
diff --git a/services/chat/.prettierrc b/services/chat/.prettierrc
index 9d1de11caf..24f9ec526f 100644
--- a/services/chat/.prettierrc
+++ b/services/chat/.prettierrc
@@ -1,7 +1,6 @@
 # This file was auto-generated, do not edit it directly.
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
-# Version: 1.4.0
 {
   "semi": false,
   "singleQuote": true
diff --git a/services/chat/Dockerfile b/services/chat/Dockerfile
index 99a19e8021..78a715757d 100644
--- a/services/chat/Dockerfile
+++ b/services/chat/Dockerfile
@@ -1,7 +1,6 @@
 # This file was auto-generated, do not edit it directly.
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
-# Version: 1.4.0
 
 FROM node:10.21.0 as base
 
@@ -12,12 +11,10 @@ FROM base as app
 #wildcard as some files may not be in all repos
 COPY package*.json npm-shrink*.json /app/
 
-RUN npm install --quiet
+RUN npm ci --quiet
 
 COPY . /app
 
-
-
 FROM base
 
 COPY --from=app /app /app
diff --git a/services/chat/Jenkinsfile b/services/chat/Jenkinsfile
deleted file mode 100644
index 31a427dd08..0000000000
--- a/services/chat/Jenkinsfile
+++ /dev/null
@@ -1,131 +0,0 @@
-String cron_string = BRANCH_NAME == "master" ? "@daily" : ""
-
-pipeline {
-  agent any
-
-  environment {
-    GIT_PROJECT = "chat"
-    JENKINS_WORKFLOW = "chat-sharelatex"
-    TARGET_URL = "${env.JENKINS_URL}blue/organizations/jenkins/${JENKINS_WORKFLOW}/detail/$BRANCH_NAME/$BUILD_NUMBER/pipeline"
-    GIT_API_URL = "https://api.github.com/repos/overleaf/${GIT_PROJECT}/statuses/$GIT_COMMIT"
-  }
-
-  triggers {
-    pollSCM('* * * * *')
-    cron(cron_string)
-  }
-
-  stages {
-
-    stage('Install') {
-      steps {
-        withCredentials([usernamePassword(credentialsId: 'GITHUB_INTEGRATION', usernameVariable: 'GH_AUTH_USERNAME', passwordVariable: 'GH_AUTH_PASSWORD')]) {
-          sh "curl $GIT_API_URL \
-            --data '{ \
-            \"state\" : \"pending\", \
-            \"target_url\": \"$TARGET_URL\", \
-            \"description\": \"Your build is underway\", \
-            \"context\": \"ci/jenkins\" }' \
-            -u $GH_AUTH_USERNAME:$GH_AUTH_PASSWORD"
-        }
-      }
-    }
-
-    stage('Build') {
-      steps {
-        sh 'make build'
-      }
-    }
-
-    stage('Linting') {
-      steps {
-        sh 'DOCKER_COMPOSE_FLAGS="-f docker-compose.ci.yml" make format'
-        sh 'DOCKER_COMPOSE_FLAGS="-f docker-compose.ci.yml" make lint'
-      }
-    }
-
-    stage('Unit Tests') {
-      steps {
-        sh 'DOCKER_COMPOSE_FLAGS="-f docker-compose.ci.yml" make test_unit'
-      }
-    }
-
-    stage('Acceptance Tests') {
-      steps {
-        sh 'DOCKER_COMPOSE_FLAGS="-f docker-compose.ci.yml" make test_acceptance'
-      }
-    }
-
-    stage('Package and docker push') {
-      steps {
-        sh 'echo ${BUILD_NUMBER} > build_number.txt'
-        sh 'touch build.tar.gz' // Avoid tar warning about files changing during read
-        sh 'DOCKER_COMPOSE_FLAGS="-f docker-compose.ci.yml" make tar'
-        
-        withCredentials([file(credentialsId: 'gcr.io_overleaf-ops', variable: 'DOCKER_REPO_KEY_PATH')]) {
-          sh 'docker login -u _json_key --password-stdin https://gcr.io/overleaf-ops < ${DOCKER_REPO_KEY_PATH}'
-        }
-        sh 'DOCKER_REPO=gcr.io/overleaf-ops make publish'
-        sh 'docker logout https://gcr.io/overleaf-ops'
-        
-      }
-    }
-
-    stage('Publish to s3') {
-      steps {
-        sh 'echo ${BRANCH_NAME}-${BUILD_NUMBER} > build_number.txt'
-        withAWS(credentials:'S3_CI_BUILDS_AWS_KEYS', region:"${S3_REGION_BUILD_ARTEFACTS}") {
-            s3Upload(file:'build.tar.gz', bucket:"${S3_BUCKET_BUILD_ARTEFACTS}", path:"${JOB_NAME}/${BUILD_NUMBER}.tar.gz")
-        }
-        withAWS(credentials:'S3_CI_BUILDS_AWS_KEYS', region:"${S3_REGION_BUILD_ARTEFACTS}") {
-            // The deployment process uses this file to figure out the latest build
-            s3Upload(file:'build_number.txt', bucket:"${S3_BUCKET_BUILD_ARTEFACTS}", path:"${JOB_NAME}/latest")
-        }
-      }
-    }
-  }
-
-  post {
-    always {
-      sh 'DOCKER_COMPOSE_FLAGS="-f docker-compose.ci.yml" make test_clean'
-      sh 'make clean'
-    }
-
-    success {
-      withCredentials([usernamePassword(credentialsId: 'GITHUB_INTEGRATION', usernameVariable: 'GH_AUTH_USERNAME', passwordVariable: 'GH_AUTH_PASSWORD')]) {
-        sh "curl $GIT_API_URL \
-          --data '{ \
-          \"state\" : \"success\", \
-          \"target_url\": \"$TARGET_URL\", \
-          \"description\": \"Your build succeeded!\", \
-          \"context\": \"ci/jenkins\" }' \
-          -u $GH_AUTH_USERNAME:$GH_AUTH_PASSWORD"
-      }
-    }
-
-    failure {
-      mail(from: "${EMAIL_ALERT_FROM}",
-           to: "${EMAIL_ALERT_TO}",
-           subject: "Jenkins build failed: ${JOB_NAME}:${BUILD_NUMBER}",
-           body: "Build: ${BUILD_URL}")
-      withCredentials([usernamePassword(credentialsId: 'GITHUB_INTEGRATION', usernameVariable: 'GH_AUTH_USERNAME', passwordVariable: 'GH_AUTH_PASSWORD')]) {
-        sh "curl $GIT_API_URL \
-          --data '{ \
-          \"state\" : \"failure\", \
-          \"target_url\": \"$TARGET_URL\", \
-          \"description\": \"Your build failed\", \
-          \"context\": \"ci/jenkins\" }' \
-          -u $GH_AUTH_USERNAME:$GH_AUTH_PASSWORD"
-      }
-    }
-  }
-
-  // The options directive is for configuration that applies to the whole job.
-  options {
-    // we'd like to make sure remove old builds, so we don't fill up our storage!
-    buildDiscarder(logRotator(numToKeepStr:'50'))
-
-    // And we'd really like to be sure that this build doesn't hang forever, so let's time it out after:
-    timeout(time: 30, unit: 'MINUTES')
-  }
-}
diff --git a/services/chat/Makefile b/services/chat/Makefile
index 71f7de02b8..129653cc13 100644
--- a/services/chat/Makefile
+++ b/services/chat/Makefile
@@ -1,11 +1,12 @@
 # This file was auto-generated, do not edit it directly.
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
-# Version: 1.4.0
 
 BUILD_NUMBER ?= local
 BRANCH_NAME ?= $(shell git rev-parse --abbrev-ref HEAD)
 PROJECT_NAME = chat
+BUILD_DIR_NAME = $(shell pwd | xargs basename | tr -cd '[a-zA-Z0-9_.\-]')
+
 DOCKER_COMPOSE_FLAGS ?= -f docker-compose.yml
 DOCKER_COMPOSE := BUILD_NUMBER=$(BUILD_NUMBER) \
 	BRANCH_NAME=$(BRANCH_NAME) \
@@ -13,39 +14,63 @@ DOCKER_COMPOSE := BUILD_NUMBER=$(BUILD_NUMBER) \
 	MOCHA_GREP=${MOCHA_GREP} \
 	docker-compose ${DOCKER_COMPOSE_FLAGS}
 
+DOCKER_COMPOSE_TEST_ACCEPTANCE = \
+	COMPOSE_PROJECT_NAME=test_acceptance_$(BUILD_DIR_NAME) $(DOCKER_COMPOSE)
+
+DOCKER_COMPOSE_TEST_UNIT = \
+	COMPOSE_PROJECT_NAME=test_unit_$(BUILD_DIR_NAME) $(DOCKER_COMPOSE)
+
 clean:
 	docker rmi ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
 	docker rmi gcr.io/overleaf-ops/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
 
 format:
-	$(DOCKER_COMPOSE) run --rm test_unit npm run format
+	$(DOCKER_COMPOSE) run --rm test_unit npm run --silent format
 
 format_fix:
-	$(DOCKER_COMPOSE) run --rm test_unit npm run format:fix
+	$(DOCKER_COMPOSE) run --rm test_unit npm run --silent format:fix
 
 lint:
-	$(DOCKER_COMPOSE) run --rm test_unit npm run lint
+	$(DOCKER_COMPOSE) run --rm test_unit npm run --silent lint
 
 test: format lint test_unit test_acceptance
 
 test_unit:
-	@[ ! -d test/unit ] && echo "chat has no unit tests" || $(DOCKER_COMPOSE) run --rm test_unit
+ifneq (,$(wildcard test/unit))
+	$(DOCKER_COMPOSE_TEST_UNIT) run --rm test_unit
+	$(MAKE) test_unit_clean
+endif
 
-test_acceptance: test_clean test_acceptance_pre_run test_acceptance_run
+test_clean: test_unit_clean
+test_unit_clean:
+ifneq (,$(wildcard test/unit))
+	$(DOCKER_COMPOSE_TEST_UNIT) down -v -t 0
+endif
 
-test_acceptance_debug: test_clean test_acceptance_pre_run test_acceptance_run_debug
+test_acceptance: test_acceptance_clean test_acceptance_pre_run test_acceptance_run
+	$(MAKE) test_acceptance_clean
+
+test_acceptance_debug: test_acceptance_clean test_acceptance_pre_run test_acceptance_run_debug
+	$(MAKE) test_acceptance_clean
 
 test_acceptance_run:
-	@[ ! -d test/acceptance ] && echo "chat has no acceptance tests" || $(DOCKER_COMPOSE) run --rm test_acceptance
+ifneq (,$(wildcard test/acceptance))
+	$(DOCKER_COMPOSE_TEST_ACCEPTANCE) run --rm test_acceptance
+endif
 
 test_acceptance_run_debug:
-	@[ ! -d test/acceptance ] && echo "chat has no acceptance tests" || $(DOCKER_COMPOSE) run -p 127.0.0.9:19999:19999 --rm test_acceptance npm run test:acceptance -- --inspect=0.0.0.0:19999 --inspect-brk
+ifneq (,$(wildcard test/acceptance))
+	$(DOCKER_COMPOSE_TEST_ACCEPTANCE) run -p 127.0.0.9:19999:19999 --rm test_acceptance npm run test:acceptance -- --inspect=0.0.0.0:19999 --inspect-brk
+endif
 
-test_clean:
-	$(DOCKER_COMPOSE) down -v -t 0
+test_clean: test_acceptance_clean
+test_acceptance_clean:
+	$(DOCKER_COMPOSE_TEST_ACCEPTANCE) down -v -t 0
 
 test_acceptance_pre_run:
-	@[ ! -f test/acceptance/js/scripts/pre-run ] && echo "chat has no pre acceptance tests task" || $(DOCKER_COMPOSE) run --rm test_acceptance test/acceptance/js/scripts/pre-run
+ifneq (,$(wildcard test/acceptance/js/scripts/pre-run))
+	$(DOCKER_COMPOSE_TEST_ACCEPTANCE) run --rm test_acceptance test/acceptance/js/scripts/pre-run
+endif
 
 build:
 	docker build --pull --tag ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER) \
diff --git a/services/chat/app.js b/services/chat/app.js
index ceeaa2ce85..bb1238dd9c 100644
--- a/services/chat/app.js
+++ b/services/chat/app.js
@@ -15,14 +15,14 @@ if (!module.parent) {
   const port =
     __guard__(
       settings.internal != null ? settings.internal.chat : undefined,
-      x => x.port
+      (x) => x.port
     ) || 3010
   const host =
     __guard__(
       settings.internal != null ? settings.internal.chat : undefined,
-      x1 => x1.host
+      (x1) => x1.host
     ) || 'localhost'
-  Server.server.listen(port, host, function(error) {
+  Server.server.listen(port, host, function (error) {
     if (error != null) {
       throw error
     }
diff --git a/services/chat/app/js/Features/Messages/MessageFormatter.js b/services/chat/app/js/Features/Messages/MessageFormatter.js
index b29c7cfae7..7a685ea258 100644
--- a/services/chat/app/js/Features/Messages/MessageFormatter.js
+++ b/services/chat/app/js/Features/Messages/MessageFormatter.js
@@ -31,7 +31,7 @@ module.exports = MessageFormatter = {
   },
 
   formatMessagesForClientSide(messages) {
-    return Array.from(messages).map(message =>
+    return Array.from(messages).map((message) =>
       this.formatMessageForClientSide(message)
     )
   },
@@ -44,7 +44,7 @@ module.exports = MessageFormatter = {
     }
 
     const threads = {}
-    const getThread = function(room) {
+    const getThread = function (room) {
       const thread_id = room.thread_id.toString()
       if (threads[thread_id] != null) {
         return threads[thread_id]
diff --git a/services/chat/app/js/Features/Messages/MessageHttpController.js b/services/chat/app/js/Features/Messages/MessageHttpController.js
index fffbbc44b3..d352a93220 100644
--- a/services/chat/app/js/Features/Messages/MessageHttpController.js
+++ b/services/chat/app/js/Features/Messages/MessageHttpController.js
@@ -53,12 +53,15 @@ module.exports = MessageHttpController = {
   getAllThreads(req, res, next) {
     const { project_id } = req.params
     logger.log({ project_id }, 'getting all threads')
-    return ThreadManager.findAllThreadRooms(project_id, function(error, rooms) {
+    return ThreadManager.findAllThreadRooms(project_id, function (
+      error,
+      rooms
+    ) {
       if (error != null) {
         return next(error)
       }
-      const room_ids = rooms.map(r => r._id)
-      return MessageManager.findAllMessagesInRooms(room_ids, function(
+      const room_ids = rooms.map((r) => r._id)
+      return MessageManager.findAllMessagesInRooms(room_ids, function (
         error,
         messages
       ) {
@@ -75,20 +78,23 @@ module.exports = MessageHttpController = {
     const { project_id, thread_id } = req.params
     const { user_id } = req.body
     logger.log({ user_id, project_id, thread_id }, 'marking thread as resolved')
-    return ThreadManager.resolveThread(project_id, thread_id, user_id, function(
-      error
-    ) {
-      if (error != null) {
-        return next(error)
+    return ThreadManager.resolveThread(
+      project_id,
+      thread_id,
+      user_id,
+      function (error) {
+        if (error != null) {
+          return next(error)
+        }
+        return res.sendStatus(204)
       }
-      return res.sendStatus(204)
-    })
+    )
   }, // No content
 
   reopenThread(req, res, next) {
     const { project_id, thread_id } = req.params
     logger.log({ project_id, thread_id }, 'reopening thread')
-    return ThreadManager.reopenThread(project_id, thread_id, function(error) {
+    return ThreadManager.reopenThread(project_id, thread_id, function (error) {
       if (error != null) {
         return next(error)
       }
@@ -99,14 +105,14 @@ module.exports = MessageHttpController = {
   deleteThread(req, res, next) {
     const { project_id, thread_id } = req.params
     logger.log({ project_id, thread_id }, 'deleting thread')
-    return ThreadManager.deleteThread(project_id, thread_id, function(
+    return ThreadManager.deleteThread(project_id, thread_id, function (
       error,
       room_id
     ) {
       if (error != null) {
         return next(error)
       }
-      return MessageManager.deleteAllMessagesInRoom(room_id, function(error) {
+      return MessageManager.deleteAllMessagesInRoom(room_id, function (error) {
         if (error != null) {
           return next(error)
         }
@@ -122,7 +128,7 @@ module.exports = MessageHttpController = {
       { project_id, thread_id, message_id, content },
       'editing message'
     )
-    return ThreadManager.findOrCreateThread(project_id, thread_id, function(
+    return ThreadManager.findOrCreateThread(project_id, thread_id, function (
       error,
       room
     ) {
@@ -134,7 +140,7 @@ module.exports = MessageHttpController = {
         message_id,
         content,
         Date.now(),
-        function(error) {
+        function (error) {
           if (error != null) {
             return next(error)
           }
@@ -147,14 +153,14 @@ module.exports = MessageHttpController = {
   deleteMessage(req, res, next) {
     const { project_id, thread_id, message_id } = req.params
     logger.log({ project_id, thread_id, message_id }, 'deleting message')
-    return ThreadManager.findOrCreateThread(project_id, thread_id, function(
+    return ThreadManager.findOrCreateThread(project_id, thread_id, function (
       error,
       room
     ) {
       if (error != null) {
         return next(error)
       }
-      return MessageManager.deleteMessage(room._id, message_id, function(
+      return MessageManager.deleteMessage(room._id, message_id, function (
         error,
         message
       ) {
@@ -187,7 +193,7 @@ module.exports = MessageHttpController = {
     return ThreadManager.findOrCreateThread(
       project_id,
       client_thread_id,
-      function(error, thread) {
+      function (error, thread) {
         if (error != null) {
           return next(error)
         }
@@ -196,7 +202,7 @@ module.exports = MessageHttpController = {
           user_id,
           content,
           Date.now(),
-          function(error, message) {
+          function (error, message) {
             if (error != null) {
               return next(error)
             }
@@ -229,7 +235,7 @@ module.exports = MessageHttpController = {
     return ThreadManager.findOrCreateThread(
       project_id,
       client_thread_id,
-      function(error, thread) {
+      function (error, thread) {
         if (error != null) {
           return next(error)
         }
@@ -242,7 +248,7 @@ module.exports = MessageHttpController = {
           thread_object_id,
           limit,
           before,
-          function(error, messages) {
+          function (error, messages) {
             if (error != null) {
               return next(error)
             }
diff --git a/services/chat/app/js/Features/Messages/MessageManager.js b/services/chat/app/js/Features/Messages/MessageManager.js
index 43492cce4b..c4c8acfc4e 100644
--- a/services/chat/app/js/Features/Messages/MessageManager.js
+++ b/services/chat/app/js/Features/Messages/MessageManager.js
@@ -23,7 +23,7 @@ const logger = require('logger-sharelatex')
 module.exports = MessageManager = {
   createMessage(room_id, user_id, content, timestamp, callback) {
     if (callback == null) {
-      callback = function(error, message) {}
+      callback = function (error, message) {}
     }
     let newMessageOpts = {
       content,
@@ -37,23 +37,20 @@ module.exports = MessageManager = {
 
   getMessages(room_id, limit, before, callback) {
     if (callback == null) {
-      callback = function(error, messages) {}
+      callback = function (error, messages) {}
     }
     let query = { room_id }
     if (before != null) {
       query.timestamp = { $lt: before }
     }
     query = this._ensureIdsAreObjectIds(query)
-    const cursor = db.messages
-      .find(query)
-      .sort({ timestamp: -1 })
-      .limit(limit)
+    const cursor = db.messages.find(query).sort({ timestamp: -1 }).limit(limit)
     return cursor.toArray(callback)
   },
 
   findAllMessagesInRooms(room_ids, callback) {
     if (callback == null) {
-      callback = function(error, messages) {}
+      callback = function (error, messages) {}
     }
     return db.messages.find(
       {
@@ -65,7 +62,7 @@ module.exports = MessageManager = {
 
   deleteAllMessagesInRoom(room_id, callback) {
     if (callback == null) {
-      callback = function(error) {}
+      callback = function (error) {}
     }
     return db.messages.remove(
       {
@@ -77,7 +74,7 @@ module.exports = MessageManager = {
 
   updateMessage(room_id, message_id, content, timestamp, callback) {
     if (callback == null) {
-      callback = function(error, message) {}
+      callback = function (error, message) {}
     }
     const query = this._ensureIdsAreObjectIds({
       _id: message_id,
@@ -91,7 +88,7 @@ module.exports = MessageManager = {
           edited_at: timestamp
         }
       },
-      function(error) {
+      function (error) {
         if (error != null) {
           return callback(error)
         }
@@ -102,13 +99,13 @@ module.exports = MessageManager = {
 
   deleteMessage(room_id, message_id, callback) {
     if (callback == null) {
-      callback = function(error) {}
+      callback = function (error) {}
     }
     const query = this._ensureIdsAreObjectIds({
       _id: message_id,
       room_id
     })
-    return db.messages.remove(query, function(error) {
+    return db.messages.remove(query, function (error) {
       if (error != null) {
         return callback(error)
       }
@@ -135,7 +132,7 @@ module.exports = MessageManager = {
   'findAllMessagesInRooms',
   'updateMessage',
   'deleteMessage'
-].map(method =>
+].map((method) =>
   metrics.timeAsyncMethod(
     MessageManager,
     method,
diff --git a/services/chat/app/js/Features/Threads/ThreadManager.js b/services/chat/app/js/Features/Threads/ThreadManager.js
index fd02b08cee..7073ad5c63 100644
--- a/services/chat/app/js/Features/Threads/ThreadManager.js
+++ b/services/chat/app/js/Features/Threads/ThreadManager.js
@@ -24,7 +24,7 @@ module.exports = ThreadManager = {
   findOrCreateThread(project_id, thread_id, callback) {
     let query, update
     if (callback == null) {
-      callback = function(error, thread) {}
+      callback = function (error, thread) {}
     }
     project_id = ObjectId(project_id.toString())
     if (thread_id !== ThreadManager.GLOBAL_THREAD) {
@@ -50,13 +50,13 @@ module.exports = ThreadManager = {
       }
     }
 
-    return db.rooms.update(query, { $set: update }, { upsert: true }, function(
+    return db.rooms.update(query, { $set: update }, { upsert: true }, function (
       error
     ) {
       if (error != null) {
         return callback(error)
       }
-      return db.rooms.find(query, function(error, rooms) {
+      return db.rooms.find(query, function (error, rooms) {
         if (rooms == null) {
           rooms = []
         }
@@ -70,7 +70,7 @@ module.exports = ThreadManager = {
 
   findAllThreadRooms(project_id, callback) {
     if (callback == null) {
-      callback = function(error, rooms) {}
+      callback = function (error, rooms) {}
     }
     return db.rooms.find(
       {
@@ -87,7 +87,7 @@ module.exports = ThreadManager = {
 
   resolveThread(project_id, thread_id, user_id, callback) {
     if (callback == null) {
-      callback = function(error) {}
+      callback = function (error) {}
     }
     return db.rooms.update(
       {
@@ -108,7 +108,7 @@ module.exports = ThreadManager = {
 
   reopenThread(project_id, thread_id, callback) {
     if (callback == null) {
-      callback = function(error) {}
+      callback = function (error) {}
     }
     return db.rooms.update(
       {
@@ -126,9 +126,9 @@ module.exports = ThreadManager = {
 
   deleteThread(project_id, thread_id, callback) {
     if (callback == null) {
-      callback = function(error, room_id) {}
+      callback = function (error, room_id) {}
     }
-    return this.findOrCreateThread(project_id, thread_id, function(
+    return this.findOrCreateThread(project_id, thread_id, function (
       error,
       room
     ) {
@@ -139,7 +139,7 @@ module.exports = ThreadManager = {
         {
           _id: room._id
         },
-        function(error) {
+        function (error) {
           if (error != null) {
             return callback(error)
           }
@@ -155,6 +155,6 @@ module.exports = ThreadManager = {
   'resolveThread',
   'reopenThread',
   'deleteThread'
-].map(method =>
+].map((method) =>
   metrics.timeAsyncMethod(ThreadManager, method, 'mongo.ThreadManager', logger)
 )
diff --git a/services/chat/app/js/router.js b/services/chat/app/js/router.js
index 7101cc4060..2188dafaf8 100644
--- a/services/chat/app/js/router.js
+++ b/services/chat/app/js/router.js
@@ -16,7 +16,7 @@ const { ObjectId } = require('./mongojs')
 
 module.exports = Router = {
   route(app) {
-    app.param('project_id', function(req, res, next, project_id) {
+    app.param('project_id', function (req, res, next, project_id) {
       if (ObjectId.isValid(project_id)) {
         return next()
       } else {
@@ -24,7 +24,7 @@ module.exports = Router = {
       }
     })
 
-    app.param('thread_id', function(req, res, next, thread_id) {
+    app.param('thread_id', function (req, res, next, thread_id) {
       if (ObjectId.isValid(thread_id)) {
         return next()
       } else {
diff --git a/services/chat/buildscript.txt b/services/chat/buildscript.txt
index 67ceb0a5ca..0604c0bd0c 100644
--- a/services/chat/buildscript.txt
+++ b/services/chat/buildscript.txt
@@ -1,10 +1,8 @@
 chat
---acceptance-creds=None
 --dependencies=mongo
 --docker-repos=gcr.io/overleaf-ops
 --env-add=
 --env-pass-through=
---language=es
 --node-version=10.21.0
 --public-repo=False
---script-version=1.4.0
+--script-version=3.3.2
diff --git a/services/chat/config/settings.defaults.js b/services/chat/config/settings.defaults.js
index 9969bed2f2..42f24ef5cc 100644
--- a/services/chat/config/settings.defaults.js
+++ b/services/chat/config/settings.defaults.js
@@ -8,8 +8,9 @@ module.exports = {
 
   apis: {
     web: {
-      url: `http://${process.env.WEB_HOST || 'localhost'}:${process.env
-        .WEB_PORT || 3000}`,
+      url: `http://${process.env.WEB_HOST || 'localhost'}:${
+        process.env.WEB_PORT || 3000
+      }`,
       user: process.env.WEB_API_USER || 'sharelatex',
       pass: process.env.WEB_API_PASSWORD || 'password'
     }
diff --git a/services/chat/docker-compose.ci.yml b/services/chat/docker-compose.ci.yml
index b7103aa941..07b933fad2 100644
--- a/services/chat/docker-compose.ci.yml
+++ b/services/chat/docker-compose.ci.yml
@@ -1,7 +1,6 @@
 # This file was auto-generated, do not edit it directly.
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
-# Version: 1.4.0
 
 version: "2.3"
 
@@ -12,6 +11,7 @@ services:
     command: npm run test:unit:_run
     environment:
       NODE_ENV: test
+      NODE_OPTIONS: "--unhandled-rejections=strict"
 
 
   test_acceptance:
@@ -24,6 +24,7 @@ services:
       POSTGRES_HOST: postgres
       MOCHA_GREP: ${MOCHA_GREP}
       NODE_ENV: test
+      NODE_OPTIONS: "--unhandled-rejections=strict"
     depends_on:
       mongo:
         condition: service_healthy
@@ -39,4 +40,4 @@ services:
     command: tar -czf /tmp/build/build.tar.gz --exclude=build.tar.gz --exclude-vcs .
     user: root
   mongo:
-    image: mongo:3.6
+    image: mongo:4.0
diff --git a/services/chat/docker-compose.yml b/services/chat/docker-compose.yml
index 377a22431a..2148461742 100644
--- a/services/chat/docker-compose.yml
+++ b/services/chat/docker-compose.yml
@@ -1,7 +1,6 @@
 # This file was auto-generated, do not edit it directly.
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
-# Version: 1.4.0
 
 version: "2.3"
 
@@ -14,7 +13,8 @@ services:
     environment:
       MOCHA_GREP: ${MOCHA_GREP}
       NODE_ENV: test
-    command: npm run test:unit
+      NODE_OPTIONS: "--unhandled-rejections=strict"
+    command: npm run --silent test:unit
     user: node
 
   test_acceptance:
@@ -30,12 +30,13 @@ services:
       MOCHA_GREP: ${MOCHA_GREP}
       LOG_LEVEL: ERROR
       NODE_ENV: test
+      NODE_OPTIONS: "--unhandled-rejections=strict"
     user: node
     depends_on:
       mongo:
         condition: service_healthy
-    command: npm run test:acceptance
+    command: npm run --silent test:acceptance
 
   mongo:
-    image: mongo:3.6
+    image: mongo:4.0
 
diff --git a/services/chat/nodemon.json b/services/chat/nodemon.json
index 5826281b84..e3e8817d90 100644
--- a/services/chat/nodemon.json
+++ b/services/chat/nodemon.json
@@ -8,7 +8,6 @@
   "execMap": {
     "js": "npm run start"
   },
-
   "watch": [
     "app/js/",
     "app.js",
diff --git a/services/chat/package-lock.json b/services/chat/package-lock.json
index b0dd3dac04..5ee22bfcf0 100644
--- a/services/chat/package-lock.json
+++ b/services/chat/package-lock.json
@@ -5152,9 +5152,9 @@
       "dev": true
     },
     "prettier": {
-      "version": "1.19.1",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-1.19.1.tgz",
-      "integrity": "sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==",
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.0.5.tgz",
+      "integrity": "sha512-7PtVymN48hGcO4fGjybyBSIWDsLU4H4XlvOHfq91pz9kkGlonzwTfYkaIEwiRg/dAJF9YlbsduBAgtYLi+8cFg==",
       "dev": true
     },
     "prettier-eslint": {
@@ -5397,6 +5397,12 @@
             "mimic-fn": "^1.0.0"
           }
         },
+        "prettier": {
+          "version": "1.19.1",
+          "resolved": "https://registry.npmjs.org/prettier/-/prettier-1.19.1.tgz",
+          "integrity": "sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==",
+          "dev": true
+        },
         "restore-cursor": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-2.0.0.tgz",
diff --git a/services/chat/package.json b/services/chat/package.json
index 3d0af655d4..0dc45b0d0a 100644
--- a/services/chat/package.json
+++ b/services/chat/package.json
@@ -13,7 +13,7 @@
     "nodemon": "nodemon --config nodemon.json",
     "test:acceptance:_run": "mocha --recursive --reporter spec --timeout 15000 --exit $@ test/acceptance/js",
     "test:unit:_run": "mocha --recursive --reporter spec $@ test/unit/js",
-    "lint": "node_modules/.bin/eslint .",
+    "lint": "node_modules/.bin/eslint --max-warnings 0 .",
     "format": "node_modules/.bin/prettier-eslint $PWD'/**/*.js' --list-different",
     "format:fix": "node_modules/.bin/prettier-eslint $PWD'/**/*.js' --write"
   },
@@ -46,6 +46,7 @@
     "eslint-plugin-standard": "^4.0.1",
     "mocha": "^7.1.0",
     "nodemon": "^2.0.2",
+    "prettier": "^2.0.0",
     "prettier-eslint-cli": "^5.0.0",
     "sandboxed-module": "^2.0.3",
     "sinon": "^9.0.0",
diff --git a/services/chat/test/acceptance/js/DeletingAMessageTests.js b/services/chat/test/acceptance/js/DeletingAMessageTests.js
index 9f13530cd4..6a5a2bd649 100644
--- a/services/chat/test/acceptance/js/DeletingAMessageTests.js
+++ b/services/chat/test/acceptance/js/DeletingAMessageTests.js
@@ -14,16 +14,16 @@ const { expect } = require('chai')
 const ChatClient = require('./helpers/ChatClient')
 const ChatApp = require('./helpers/ChatApp')
 
-describe('Deleting a message', function() {
-  before(function(done) {
+describe('Deleting a message', function () {
+  before(function (done) {
     this.project_id = ObjectId().toString()
     this.user_id = ObjectId().toString()
     this.thread_id = ObjectId().toString()
     return ChatApp.ensureRunning(done)
   })
 
-  return describe('in a thread', function() {
-    before(function(done) {
+  return describe('in a thread', function () {
+    before(function (done) {
       return ChatClient.sendMessage(
         this.project_id,
         this.thread_id,
@@ -58,7 +58,7 @@ describe('Deleting a message', function() {
       )
     })
 
-    return it('should then remove the message from the threads', function(done) {
+    return it('should then remove the message from the threads', function (done) {
       return ChatClient.getThreads(
         this.project_id,
         (error, response, threads) => {
diff --git a/services/chat/test/acceptance/js/DeletingAThreadTests.js b/services/chat/test/acceptance/js/DeletingAThreadTests.js
index 527e808568..d9b3b843f9 100644
--- a/services/chat/test/acceptance/js/DeletingAThreadTests.js
+++ b/services/chat/test/acceptance/js/DeletingAThreadTests.js
@@ -16,15 +16,15 @@ const crypto = require('crypto')
 const ChatClient = require('./helpers/ChatClient')
 const ChatApp = require('./helpers/ChatApp')
 
-describe('Deleting a thread', function() {
-  before(function(done) {
+describe('Deleting a thread', function () {
+  before(function (done) {
     this.project_id = ObjectId().toString()
     this.user_id = ObjectId().toString()
     return ChatApp.ensureRunning(done)
   })
 
-  return describe('with a thread that is deleted', function() {
-    before(function(done) {
+  return describe('with a thread that is deleted', function () {
+    before(function (done) {
       this.thread_id = ObjectId().toString()
       this.content = 'deleted thread message'
       return ChatClient.sendMessage(
@@ -48,7 +48,7 @@ describe('Deleting a thread', function() {
       )
     })
 
-    return it('should then not list the thread for the project', function(done) {
+    return it('should then not list the thread for the project', function (done) {
       return ChatClient.getThreads(
         this.project_id,
         (error, response, threads) => {
diff --git a/services/chat/test/acceptance/js/EditingAMessageTests.js b/services/chat/test/acceptance/js/EditingAMessageTests.js
index bf107412ed..a554594ed3 100644
--- a/services/chat/test/acceptance/js/EditingAMessageTests.js
+++ b/services/chat/test/acceptance/js/EditingAMessageTests.js
@@ -15,16 +15,16 @@ const { expect } = require('chai')
 const ChatClient = require('./helpers/ChatClient')
 const ChatApp = require('./helpers/ChatApp')
 
-describe('Editing a message', function() {
-  before(function(done) {
+describe('Editing a message', function () {
+  before(function (done) {
     this.project_id = ObjectId().toString()
     this.user_id = ObjectId().toString()
     this.thread_id = ObjectId().toString()
     return ChatApp.ensureRunning(done)
   })
 
-  return describe('in a thread', function() {
-    before(function(done) {
+  return describe('in a thread', function () {
+    before(function (done) {
       this.content = 'thread message'
       this.new_content = 'updated thread message'
       return ChatClient.sendMessage(
@@ -54,7 +54,7 @@ describe('Editing a message', function() {
       )
     })
 
-    return it('should then list the updated message in the threads', function(done) {
+    return it('should then list the updated message in the threads', function (done) {
       return ChatClient.getThreads(
         this.project_id,
         (error, response, threads) => {
diff --git a/services/chat/test/acceptance/js/GettingMessagesTests.js b/services/chat/test/acceptance/js/GettingMessagesTests.js
index 0fe17a5c7c..61134fd38d 100644
--- a/services/chat/test/acceptance/js/GettingMessagesTests.js
+++ b/services/chat/test/acceptance/js/GettingMessagesTests.js
@@ -18,8 +18,8 @@ const crypto = require('crypto')
 const ChatClient = require('./helpers/ChatClient')
 const ChatApp = require('./helpers/ChatApp')
 
-describe('Getting messages', function() {
-  before(function(done) {
+describe('Getting messages', function () {
+  before(function (done) {
     this.user_id1 = ObjectId().toString()
     this.user_id2 = ObjectId().toString()
     this.content1 = 'foo bar'
@@ -27,19 +27,19 @@ describe('Getting messages', function() {
     return ChatApp.ensureRunning(done)
   })
 
-  describe('globally', function() {
-    before(function(done) {
+  describe('globally', function () {
+    before(function (done) {
       this.project_id = ObjectId().toString()
       return async.series(
         [
-          cb =>
+          (cb) =>
             ChatClient.sendGlobalMessage(
               this.project_id,
               this.user_id1,
               this.content1,
               cb
             ),
-          cb =>
+          (cb) =>
             ChatClient.sendGlobalMessage(
               this.project_id,
               this.user_id2,
@@ -51,7 +51,7 @@ describe('Getting messages', function() {
       )
     })
 
-    return it('should contain the messages and populated users when getting the messages', function(done) {
+    return it('should contain the messages and populated users when getting the messages', function (done) {
       return ChatClient.getGlobalMessages(
         this.project_id,
         (error, response, messages) => {
@@ -67,14 +67,14 @@ describe('Getting messages', function() {
     })
   })
 
-  return describe('from all the threads', function() {
-    before(function(done) {
+  return describe('from all the threads', function () {
+    before(function (done) {
       this.project_id = ObjectId().toString()
       this.thread_id1 = ObjectId().toString()
       this.thread_id2 = ObjectId().toString()
       return async.series(
         [
-          cb =>
+          (cb) =>
             ChatClient.sendMessage(
               this.project_id,
               this.thread_id1,
@@ -82,7 +82,7 @@ describe('Getting messages', function() {
               'one',
               cb
             ),
-          cb =>
+          (cb) =>
             ChatClient.sendMessage(
               this.project_id,
               this.thread_id2,
@@ -90,7 +90,7 @@ describe('Getting messages', function() {
               'two',
               cb
             ),
-          cb =>
+          (cb) =>
             ChatClient.sendMessage(
               this.project_id,
               this.thread_id1,
@@ -98,7 +98,7 @@ describe('Getting messages', function() {
               'three',
               cb
             ),
-          cb =>
+          (cb) =>
             ChatClient.sendMessage(
               this.project_id,
               this.thread_id2,
@@ -111,7 +111,7 @@ describe('Getting messages', function() {
       )
     })
 
-    return it('should contain a dictionary of threads with messages with populated users', function(done) {
+    return it('should contain a dictionary of threads with messages with populated users', function (done) {
       return ChatClient.getThreads(
         this.project_id,
         (error, response, threads) => {
diff --git a/services/chat/test/acceptance/js/ResolvingAThreadTests.js b/services/chat/test/acceptance/js/ResolvingAThreadTests.js
index 255a1fc5e1..543ae891a8 100644
--- a/services/chat/test/acceptance/js/ResolvingAThreadTests.js
+++ b/services/chat/test/acceptance/js/ResolvingAThreadTests.js
@@ -17,15 +17,15 @@ const crypto = require('crypto')
 const ChatClient = require('./helpers/ChatClient')
 const ChatApp = require('./helpers/ChatApp')
 
-describe('Resolving a thread', function() {
-  before(function(done) {
+describe('Resolving a thread', function () {
+  before(function (done) {
     this.project_id = ObjectId().toString()
     this.user_id = ObjectId().toString()
     return ChatApp.ensureRunning(done)
   })
 
-  describe('with a resolved thread', function() {
-    before(function(done) {
+  describe('with a resolved thread', function () {
+    before(function (done) {
       this.thread_id = ObjectId().toString()
       this.content = 'resolved message'
       return ChatClient.sendMessage(
@@ -50,7 +50,7 @@ describe('Resolving a thread', function() {
       )
     })
 
-    return it('should then list the thread as resolved', function(done) {
+    return it('should then list the thread as resolved', function (done) {
       return ChatClient.getThreads(
         this.project_id,
         (error, response, threads) => {
@@ -68,8 +68,8 @@ describe('Resolving a thread', function() {
     })
   })
 
-  describe('when a thread is not resolved', function() {
-    before(function(done) {
+  describe('when a thread is not resolved', function () {
+    before(function (done) {
       this.thread_id = ObjectId().toString()
       this.content = 'open message'
       return ChatClient.sendMessage(
@@ -85,7 +85,7 @@ describe('Resolving a thread', function() {
       )
     })
 
-    return it('should not list the thread as resolved', function(done) {
+    return it('should not list the thread as resolved', function (done) {
       return ChatClient.getThreads(
         this.project_id,
         (error, response, threads) => {
@@ -98,8 +98,8 @@ describe('Resolving a thread', function() {
     })
   })
 
-  return describe('when a thread is resolved then reopened', function() {
-    before(function(done) {
+  return describe('when a thread is resolved then reopened', function () {
+    before(function (done) {
       this.thread_id = ObjectId().toString()
       this.content = 'resolved message'
       return ChatClient.sendMessage(
@@ -132,7 +132,7 @@ describe('Resolving a thread', function() {
       )
     })
 
-    return it('should not list the thread as resolved', function(done) {
+    return it('should not list the thread as resolved', function (done) {
       return ChatClient.getThreads(
         this.project_id,
         (error, response, threads) => {
diff --git a/services/chat/test/acceptance/js/SendingAMessageTests.js b/services/chat/test/acceptance/js/SendingAMessageTests.js
index 4b2a1fe91c..ff0ad97352 100644
--- a/services/chat/test/acceptance/js/SendingAMessageTests.js
+++ b/services/chat/test/acceptance/js/SendingAMessageTests.js
@@ -17,13 +17,13 @@ const { expect } = require('chai')
 const ChatClient = require('./helpers/ChatClient')
 const ChatApp = require('./helpers/ChatApp')
 
-describe('Sending a message', function() {
-  before(function(done) {
+describe('Sending a message', function () {
+  before(function (done) {
     return ChatApp.ensureRunning(done)
   })
 
-  describe('globally', function() {
-    before(function(done) {
+  describe('globally', function () {
+    before(function (done) {
       this.project_id = ObjectId().toString()
       this.user_id = ObjectId().toString()
       this.content = 'global message'
@@ -42,7 +42,7 @@ describe('Sending a message', function() {
       )
     })
 
-    return it('should then list the message in the project messages', function(done) {
+    return it('should then list the message in the project messages', function (done) {
       return ChatClient.getGlobalMessages(
         this.project_id,
         (error, response, messages) => {
@@ -56,8 +56,8 @@ describe('Sending a message', function() {
     })
   })
 
-  describe('to a thread', function() {
-    before(function(done) {
+  describe('to a thread', function () {
+    before(function (done) {
       this.project_id = ObjectId().toString()
       this.user_id = ObjectId().toString()
       this.thread_id = ObjectId().toString()
@@ -78,7 +78,7 @@ describe('Sending a message', function() {
       )
     })
 
-    it('should then list the message in the threads', function(done) {
+    it('should then list the message in the threads', function (done) {
       return ChatClient.getThreads(
         this.project_id,
         (error, response, threads) => {
@@ -93,7 +93,7 @@ describe('Sending a message', function() {
       )
     })
 
-    return it('should not appear in the global messages', function(done) {
+    return it('should not appear in the global messages', function (done) {
       return ChatClient.getGlobalMessages(
         this.project_id,
         (error, response, messages) => {
@@ -106,15 +106,15 @@ describe('Sending a message', function() {
     })
   })
 
-  return describe('failure cases', function() {
-    before(function() {
+  return describe('failure cases', function () {
+    before(function () {
       this.project_id = ObjectId().toString()
       this.user_id = ObjectId().toString()
       return (this.thread_id = ObjectId().toString())
     })
 
-    describe('with a malformed user_id', function() {
-      return it('should return a graceful error', function(done) {
+    describe('with a malformed user_id', function () {
+      return it('should return a graceful error', function (done) {
         return ChatClient.sendMessage(
           this.project_id,
           this.thread_id,
@@ -129,8 +129,8 @@ describe('Sending a message', function() {
       })
     })
 
-    describe('with a malformed project_id', function() {
-      return it('should return a graceful error', function(done) {
+    describe('with a malformed project_id', function () {
+      return it('should return a graceful error', function (done) {
         return ChatClient.sendMessage(
           'malformed-project',
           this.thread_id,
@@ -145,8 +145,8 @@ describe('Sending a message', function() {
       })
     })
 
-    describe('with a malformed thread_id', function() {
-      return it('should return a graceful error', function(done) {
+    describe('with a malformed thread_id', function () {
+      return it('should return a graceful error', function (done) {
         return ChatClient.sendMessage(
           this.project_id,
           'malformed-thread-id',
@@ -161,8 +161,8 @@ describe('Sending a message', function() {
       })
     })
 
-    describe('with no content', function() {
-      return it('should return a graceful error', function(done) {
+    describe('with no content', function () {
+      return it('should return a graceful error', function (done) {
         return ChatClient.sendMessage(
           this.project_id,
           this.thread_id,
@@ -177,8 +177,8 @@ describe('Sending a message', function() {
       })
     })
 
-    return describe('with very long content', function() {
-      return it('should return a graceful error', function(done) {
+    return describe('with very long content', function () {
+      return it('should return a graceful error', function (done) {
         const content = new Buffer(10240).toString('hex')
         return ChatClient.sendMessage(
           this.project_id,
diff --git a/services/chat/test/acceptance/js/helpers/ChatApp.js b/services/chat/test/acceptance/js/helpers/ChatApp.js
index 4967dc1d51..9271b21e37 100644
--- a/services/chat/test/acceptance/js/helpers/ChatApp.js
+++ b/services/chat/test/acceptance/js/helpers/ChatApp.js
@@ -20,7 +20,7 @@ module.exports = {
   callbacks: [],
   ensureRunning(callback) {
     if (callback == null) {
-      callback = function(error) {}
+      callback = function (error) {}
     }
     if (this.running) {
       return callback()
@@ -29,7 +29,7 @@ module.exports = {
     } else {
       this.initing = true
       this.callbacks.push(callback)
-      return app.listen(3010, 'localhost', error => {
+      return app.listen(3010, 'localhost', (error) => {
         if (error != null) {
           throw error
         }