diff --git a/services/web/app/src/Features/Project/ProjectController.js b/services/web/app/src/Features/Project/ProjectController.js
index c5dd884a28..9f8ed0dfc6 100644
--- a/services/web/app/src/Features/Project/ProjectController.js
+++ b/services/web/app/src/Features/Project/ProjectController.js
@@ -23,7 +23,6 @@ const ProjectUpdateHandler = require('./ProjectUpdateHandler')
 const ProjectGetter = require('./ProjectGetter')
 const PrivilegeLevels = require('../Authorization/PrivilegeLevels')
 const AuthenticationController = require('../Authentication/AuthenticationController')
-const PackageVersions = require('../../infrastructure/PackageVersions')
 const Sources = require('../Authorization/Sources')
 const TokenAccessHandler = require('../TokenAccess/TokenAccessHandler')
 const CollaboratorsGetter = require('../Collaborators/CollaboratorsGetter')
@@ -1043,11 +1042,7 @@ var defaultSettingsForAnonymousUser = userId => ({
 var THEME_LIST = []
 function generateThemeList() {
   const files = fs.readdirSync(
-    Path.join(
-      __dirname,
-      '/../../../../frontend/js/vendor/',
-      PackageVersions.lib('ace')
-    )
+    Path.join(__dirname, '/../../../../node_modules/ace-builds/src-noconflict')
   )
   const result = []
   for (let file of files) {
diff --git a/services/web/app/src/infrastructure/PackageVersions.js b/services/web/app/src/infrastructure/PackageVersions.js
index c99a9f746d..029f181924 100644
--- a/services/web/app/src/infrastructure/PackageVersions.js
+++ b/services/web/app/src/infrastructure/PackageVersions.js
@@ -5,8 +5,10 @@
  * DS207: Consider shorter variations of null checks
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
+const ACE_VERSION = require('ace-builds/version')
 const version = {
-  ace: '1.4.12', // Upgrade instructions: https://github.com/overleaf/write_latex/wiki/Upgrading-Ace
+  // Upgrade instructions: https://github.com/overleaf/write_latex/wiki/Upgrading-Ace
+  ace: ACE_VERSION,
   fineuploader: '5.15.4'
 }
 
diff --git a/services/web/package-lock.json b/services/web/package-lock.json
index 26941630ed..23beca429c 100644
--- a/services/web/package-lock.json
+++ b/services/web/package-lock.json
@@ -9140,6 +9140,10 @@
         }
       }
     },
+    "ace-builds": {
+      "version": "https://github.com/overleaf/ace-builds/archive/v1.4.12-69aace50e6796d42116f8f96e19d2468d8a88af9.tar.gz",
+      "integrity": "sha512-jHzJycBpJVzEuSiMZj8hotpzuH49uMOIcJtrdTkx2UVKGJDYpJZOrN922k+IPAiWqnfpMzUO0lmXFSBDGGguQA=="
+    },
     "acorn": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
diff --git a/services/web/package.json b/services/web/package.json
index 333add4749..e897439d63 100644
--- a/services/web/package.json
+++ b/services/web/package.json
@@ -47,6 +47,7 @@
     "@pollyjs/core": "^4.2.1",
     "@pollyjs/persister-fs": "^4.2.1",
     "@sentry/browser": "^5.12.0",
+    "ace-builds": "https://github.com/overleaf/ace-builds/archive/v1.4.12-69aace50e6796d42116f8f96e19d2468d8a88af9.tar.gz",
     "algoliasearch": "^3.35.1",
     "angular": "~1.8.0",
     "angular-sanitize": "~1.8.0",
diff --git a/services/web/webpack.config.js b/services/web/webpack.config.js
index 947dbdaae6..26fa36e97b 100644
--- a/services/web/webpack.config.js
+++ b/services/web/webpack.config.js
@@ -201,10 +201,7 @@ module.exports = {
       // Shortcut to vendored dependencies in frontend/js/vendor/libs
       libs: path.join(__dirname, 'frontend/js/vendor/libs'),
       // Enables ace/ace shortcut
-      ace: path.join(
-        __dirname,
-        `frontend/js/vendor/${PackageVersions.lib('ace')}`
-      ),
+      ace: 'ace-builds/src-noconflict',
       // fineupload vendored dependency (which we're aliasing to fineuploadER
       // for some reason)
       fineuploader: path.join(
@@ -263,7 +260,7 @@ module.exports = {
         to: 'js/libs/sigma-master'
       },
       {
-        from: `frontend/js/vendor/ace-${PackageVersions.version.ace}/`,
+        from: 'node_modules/ace-builds/src-noconflict',
         to: `js/ace-${PackageVersions.version.ace}/`
       },
       // Copy CMap files from pdfjs-dist package to build output. These are used