diff --git a/services/chat/docker-compose.ci.yml b/services/chat/docker-compose.ci.yml
index f9eeb13b05..cc5d75f7b4 100644
--- a/services/chat/docker-compose.ci.yml
+++ b/services/chat/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -42,7 +42,7 @@ services:
     command: tar -czf /tmp/build/build.tar.gz --exclude=build.tar.gz --exclude-vcs .
     user: root
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/chat/docker-compose.yml b/services/chat/docker-compose.yml
index e67a390534..fae8edbba1 100644
--- a/services/chat/docker-compose.yml
+++ b/services/chat/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -44,7 +44,7 @@ services:
     command: npm run --silent test:acceptance
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/clsi/docker-compose.ci.yml b/services/clsi/docker-compose.ci.yml
index f1371362b4..5c2943073d 100644
--- a/services/clsi/docker-compose.ci.yml
+++ b/services/clsi/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
diff --git a/services/clsi/docker-compose.yml b/services/clsi/docker-compose.yml
index 388f2d839f..c7b10cbbb4 100644
--- a/services/clsi/docker-compose.yml
+++ b/services/clsi/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
diff --git a/services/contacts/docker-compose.ci.yml b/services/contacts/docker-compose.ci.yml
index f9eeb13b05..cc5d75f7b4 100644
--- a/services/contacts/docker-compose.ci.yml
+++ b/services/contacts/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -42,7 +42,7 @@ services:
     command: tar -czf /tmp/build/build.tar.gz --exclude=build.tar.gz --exclude-vcs .
     user: root
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/contacts/docker-compose.yml b/services/contacts/docker-compose.yml
index 47aa25e7aa..2982e32457 100644
--- a/services/contacts/docker-compose.yml
+++ b/services/contacts/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -44,7 +44,7 @@ services:
     command: npm run --silent test:acceptance
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/docstore/docker-compose.ci.yml b/services/docstore/docker-compose.ci.yml
index 8163d53b7b..56b6fc9ac7 100644
--- a/services/docstore/docker-compose.ci.yml
+++ b/services/docstore/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -51,7 +51,7 @@ services:
     command: tar -czf /tmp/build/build.tar.gz --exclude=build.tar.gz --exclude-vcs .
     user: root
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/docstore/docker-compose.yml b/services/docstore/docker-compose.yml
index 5a6df54c60..cc84f519f0 100644
--- a/services/docstore/docker-compose.yml
+++ b/services/docstore/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -53,7 +53,7 @@ services:
     command: npm run --silent test:acceptance
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/document-updater/docker-compose.ci.yml b/services/document-updater/docker-compose.ci.yml
index 20555a8e54..e536ed999d 100644
--- a/services/document-updater/docker-compose.ci.yml
+++ b/services/document-updater/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -51,7 +51,7 @@ services:
       retries: 20
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/document-updater/docker-compose.yml b/services/document-updater/docker-compose.yml
index aa7e4e2727..c14ffad9da 100644
--- a/services/document-updater/docker-compose.yml
+++ b/services/document-updater/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -53,7 +53,7 @@ services:
       retries: 20
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/filestore/docker-compose.ci.yml b/services/filestore/docker-compose.ci.yml
index 63f1286d5a..4b4f9766a2 100644
--- a/services/filestore/docker-compose.ci.yml
+++ b/services/filestore/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
diff --git a/services/filestore/docker-compose.yml b/services/filestore/docker-compose.yml
index 71ef317b98..944163dcf9 100644
--- a/services/filestore/docker-compose.yml
+++ b/services/filestore/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
diff --git a/services/notifications/docker-compose.ci.yml b/services/notifications/docker-compose.ci.yml
index f9eeb13b05..cc5d75f7b4 100644
--- a/services/notifications/docker-compose.ci.yml
+++ b/services/notifications/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -42,7 +42,7 @@ services:
     command: tar -czf /tmp/build/build.tar.gz --exclude=build.tar.gz --exclude-vcs .
     user: root
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/notifications/docker-compose.yml b/services/notifications/docker-compose.yml
index 745a24c842..8ec4d656a5 100644
--- a/services/notifications/docker-compose.yml
+++ b/services/notifications/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -44,7 +44,7 @@ services:
     command: npm run --silent test:acceptance
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/real-time/docker-compose.ci.yml b/services/real-time/docker-compose.ci.yml
index a55b372369..e2bdcaf6e2 100644
--- a/services/real-time/docker-compose.ci.yml
+++ b/services/real-time/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
diff --git a/services/real-time/docker-compose.yml b/services/real-time/docker-compose.yml
index 688626be4b..c9f4bf51a0 100644
--- a/services/real-time/docker-compose.yml
+++ b/services/real-time/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
diff --git a/services/spelling/docker-compose.ci.yml b/services/spelling/docker-compose.ci.yml
index f9eeb13b05..cc5d75f7b4 100644
--- a/services/spelling/docker-compose.ci.yml
+++ b/services/spelling/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -42,7 +42,7 @@ services:
     command: tar -czf /tmp/build/build.tar.gz --exclude=build.tar.gz --exclude-vcs .
     user: root
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/spelling/docker-compose.yml b/services/spelling/docker-compose.yml
index b41743ab7c..675237f39f 100644
--- a/services/spelling/docker-compose.yml
+++ b/services/spelling/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -50,7 +50,7 @@ services:
     command: npm run --silent test:acceptance
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/track-changes/docker-compose.ci.yml b/services/track-changes/docker-compose.ci.yml
index 28f286d370..2fb8c9b605 100644
--- a/services/track-changes/docker-compose.ci.yml
+++ b/services/track-changes/docker-compose.ci.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -58,7 +58,7 @@ services:
       retries: 20
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/track-changes/docker-compose.yml b/services/track-changes/docker-compose.yml
index 78b6b6b28e..ed4bd4ca9b 100644
--- a/services/track-changes/docker-compose.yml
+++ b/services/track-changes/docker-compose.yml
@@ -1,6 +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
+# https://github.com/overleaf/internal/
 
 version: "2.3"
 
@@ -60,7 +60,7 @@ services:
       retries: 20
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
     healthcheck:
       test: "mongo --quiet localhost/test --eval 'quit(db.runCommand({ ping: 1 }).ok ? 0 : 1)'"
       interval: 1s
diff --git a/services/web/docker-compose.ci.yml b/services/web/docker-compose.ci.yml
index cdf49fd993..1abf6d5176 100644
--- a/services/web/docker-compose.ci.yml
+++ b/services/web/docker-compose.ci.yml
@@ -91,7 +91,7 @@ services:
     image: redis
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
 
   ldap:
     restart: always
diff --git a/services/web/docker-compose.yml b/services/web/docker-compose.yml
index ca38a11d22..9a5a03b709 100644
--- a/services/web/docker-compose.yml
+++ b/services/web/docker-compose.yml
@@ -89,7 +89,7 @@ services:
     image: redis
 
   mongo:
-    image: mongo:4.2.15
+    image: mongo:4.4.16
 
   ldap:
     restart: always
diff --git a/services/web/migrations/20220825160708_recreate_dropboxEntities.js b/services/web/migrations/20220825160708_recreate_dropboxEntities.js
new file mode 100644
index 0000000000..628d11eb1c
--- /dev/null
+++ b/services/web/migrations/20220825160708_recreate_dropboxEntities.js
@@ -0,0 +1,32 @@
+const Helpers = require('./lib/helpers')
+
+exports.tags = ['saas']
+
+const indexes = [
+  {
+    key: { 'overleaf.userId': 1, 'dropbox.id': 1 },
+    name: 'overleaf.userId_1_dropbox.id_1',
+    unique: true,
+    partialFilterExpression: { 'dropbox.id': { $exists: true } },
+  },
+  {
+    key: { 'overleaf.userId': 1, 'overleaf.id': 1 },
+    name: 'overleaf.userId_1_overleaf.id_1',
+    unique: true,
+    partialFilterExpression: { 'overleaf.id': { $exists: true } },
+  },
+  { key: { 'overleaf.userId': 1, 'dropbox.pathLower': 'hashed' } },
+]
+
+exports.migrate = async client => {
+  const { db } = client
+  // Forcibly drop the dropboxEntities collection. The new structure is
+  // different and we don't want to keep the data with the old structure around.
+  await db.dropboxEntities.drop()
+  await Helpers.addIndexesToCollection(db.dropboxEntities, indexes)
+}
+
+exports.rollback = async client => {
+  const { db } = client
+  await Helpers.dropIndexesFromCollection(db.dropboxEntities, indexes)
+}