diff --git a/services/track-changes/app/js/mongojs.js b/services/track-changes/app/js/mongojs.js
deleted file mode 100644
index 718d873873..0000000000
--- a/services/track-changes/app/js/mongojs.js
+++ /dev/null
@@ -1,13 +0,0 @@
-// TODO: This file was created by bulk-decaffeinate.
-// Sanity-check the conversion and remove this comment.
-const Settings = require('settings-sharelatex')
-const mongojs = require('mongojs')
-const db = mongojs(Settings.mongo.url, [
-  'docHistory',
-  'projectHistoryMetaData',
-  'docHistoryIndex'
-])
-module.exports = {
-  db,
-  ObjectId: mongojs.ObjectId
-}
diff --git a/services/track-changes/package-lock.json b/services/track-changes/package-lock.json
index 600951b57b..06294524b8 100644
--- a/services/track-changes/package-lock.json
+++ b/services/track-changes/package-lock.json
@@ -8,6 +8,7 @@
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+      "dev": true,
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       }
@@ -16,6 +17,7 @@
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+      "dev": true,
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         "jsesc": "^2.5.1",
@@ -26,7 +28,8 @@
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           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
-          "integrity": "sha512-LbrmJOMUSdEVxIKvdcJzQC+nQhe8FUZQTXQy6+I75skNgn3OoQ0DZA8YnFa7gp8tqtL3KPf1kmo0R5DoApeSGQ=="
+          "integrity": "sha512-LbrmJOMUSdEVxIKvdcJzQC+nQhe8FUZQTXQy6+I75skNgn3OoQ0DZA8YnFa7gp8tqtL3KPf1kmo0R5DoApeSGQ==",
+          "dev": true
         }
       }
     },
@@ -34,6 +37,7 @@
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+      "dev": true,
       "requires": {
         "@babel/helper-get-function-arity": "^7.8.3",
         "@babel/template": "^7.8.3",
@@ -44,6 +48,7 @@
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       "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.8.3.tgz",
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+      "dev": true,
       "requires": {
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       }
@@ -52,6 +57,7 @@
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+      "dev": true,
       "requires": {
         "@babel/types": "^7.8.3"
       }
@@ -59,12 +65,14 @@
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       "version": "7.9.0",
       "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.0.tgz",
-      "integrity": "sha512-6G8bQKjOh+of4PV/ThDm/rRqlU7+IGoJuofpagU5GlEl29Vv0RGqqt86ZGRV8ZuSOY3o+8yXl5y782SMcG7SHw=="
+      "integrity": "sha512-6G8bQKjOh+of4PV/ThDm/rRqlU7+IGoJuofpagU5GlEl29Vv0RGqqt86ZGRV8ZuSOY3o+8yXl5y782SMcG7SHw==",
+      "dev": true
     },
     "@babel/highlight": {
       "version": "7.8.3",
       "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.8.3.tgz",
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+      "dev": true,
       "requires": {
         "chalk": "^2.0.0",
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@@ -74,7 +82,8 @@
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       "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.9.0.tgz",
-      "integrity": "sha512-Iwyp00CZsypoNJcpXCbq3G4tcDgphtlMwMVrMhhZ//XBkqjXF7LW6V511yk0+pBX3ZwwGnPea+pTKNJiqA7pUg=="
+      "integrity": "sha512-Iwyp00CZsypoNJcpXCbq3G4tcDgphtlMwMVrMhhZ//XBkqjXF7LW6V511yk0+pBX3ZwwGnPea+pTKNJiqA7pUg==",
+      "dev": true
     },
     "@babel/runtime": {
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@@ -107,6 +116,7 @@
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+      "dev": true,
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@@ -117,6 +127,7 @@
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+      "dev": true,
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+      "dev": true,
       "requires": {
         "color-convert": "^1.9.0"
       }
@@ -1265,23 +1278,11 @@
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-      "requires": {
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-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/archy/-/archy-1.0.0.tgz",
-      "integrity": "sha512-Xg+9RwCg/0p32teKdGMPTPnVXKD0w3DfHnFTficozsAgsvq2XenPJq/MYpzzQ/v8zrOyJn6Ds39VA4JIDwFfqw=="
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     },
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@@ -1823,11 +1823,6 @@
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@@ -2173,11 +2137,6 @@
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           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
-          "integrity": "sha512-VHskAKYM8RfSFXwee5t5cbN5PZeq1Wrh6qd5bkyiXIf6UQcN6w/A0eXM9r6t8d+GYOh+o6ZhiEnb88LN/Y8m2w=="
+          "integrity": "sha512-VHskAKYM8RfSFXwee5t5cbN5PZeq1Wrh6qd5bkyiXIf6UQcN6w/A0eXM9r6t8d+GYOh+o6ZhiEnb88LN/Y8m2w==",
+          "dev": true
         },
         "locate-path": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
           "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "dev": true,
           "requires": {
             "p-locate": "^3.0.0",
             "path-exists": "^3.0.0"
@@ -7739,6 +7153,7 @@
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
           "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
           "requires": {
             "p-limit": "^2.0.0"
           }
@@ -7747,6 +7162,7 @@
           "version": "3.1.0",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
           "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
           "requires": {
             "emoji-regex": "^7.0.1",
             "is-fullwidth-code-point": "^2.0.0",
@@ -7759,6 +7175,7 @@
       "version": "13.1.1",
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
       "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+      "dev": true,
       "requires": {
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
diff --git a/services/track-changes/package.json b/services/track-changes/package.json
index b14882656f..dfb1d93a7a 100644
--- a/services/track-changes/package.json
+++ b/services/track-changes/package.json
@@ -31,7 +31,6 @@
     "metrics-sharelatex": "^2.6.2",
     "mongo-uri": "^0.1.2",
     "mongodb": "^3.6.0",
-    "mongojs": "3.1.0",
     "redis": "~0.10.1",
     "redis-sharelatex": "^1.0.13",
     "request": "~2.88.2",
diff --git a/services/track-changes/test/acceptance/js/AppendingUpdatesTests.js b/services/track-changes/test/acceptance/js/AppendingUpdatesTests.js
index d6d6b44726..4cf250cfac 100644
--- a/services/track-changes/test/acceptance/js/AppendingUpdatesTests.js
+++ b/services/track-changes/test/acceptance/js/AppendingUpdatesTests.js
@@ -14,8 +14,7 @@ const sinon = require('sinon')
 const chai = require('chai')
 chai.should()
 const { expect } = chai
-const mongojs = require('../../../app/js/mongojs')
-const { ObjectId } = mongojs
+const { ObjectId } = require('../../../app/js/mongodb')
 const Settings = require('settings-sharelatex')
 const request = require('request')
 const rclient = require('redis').createClient(Settings.redis.history) // Only works locally for now
diff --git a/services/track-changes/test/acceptance/js/ArchivingUpdatesTests.js b/services/track-changes/test/acceptance/js/ArchivingUpdatesTests.js
index 8ceb1b0ba7..5df0844409 100644
--- a/services/track-changes/test/acceptance/js/ArchivingUpdatesTests.js
+++ b/services/track-changes/test/acceptance/js/ArchivingUpdatesTests.js
@@ -18,9 +18,7 @@ const sinon = require('sinon')
 const chai = require('chai')
 chai.should()
 const { expect } = chai
-const mongojs = require('../../../app/js/mongojs')
-const { db } = mongojs
-const { ObjectId } = mongojs
+const { db, ObjectId } = require('../../../app/js/mongodb')
 const Settings = require('settings-sharelatex')
 const request = require('request')
 const rclient = require('redis').createClient(Settings.redis.history) // Only works locally for now
@@ -126,7 +124,7 @@ describe('Archiving updates', function () {
 
   after(function (done) {
     MockWebApi.getUserInfo.restore()
-    return db.docHistory.remove(
+    return db.docHistory.deleteMany(
       { project_id: ObjectId(this.project_id) },
       () => {
         return db.docHistoryIndex.remove(
@@ -172,7 +170,7 @@ describe('Archiving updates', function () {
     })
 
     it('should have one remaining pack after cache is expired', function (done) {
-      return db.docHistory.remove(
+      return db.docHistory.deleteMany(
         {
           doc_id: ObjectId(this.doc_id),
           expiresAt: { $exists: true }
diff --git a/services/track-changes/test/acceptance/js/FlushingUpdatesTests.js b/services/track-changes/test/acceptance/js/FlushingUpdatesTests.js
index 4a06e086e5..a48abcc976 100644
--- a/services/track-changes/test/acceptance/js/FlushingUpdatesTests.js
+++ b/services/track-changes/test/acceptance/js/FlushingUpdatesTests.js
@@ -14,8 +14,7 @@ const sinon = require('sinon')
 const chai = require('chai')
 chai.should()
 const { expect } = chai
-const mongojs = require('../../../app/js/mongojs')
-const { ObjectId } = mongojs
+const { ObjectId } = require('../../../app/js/mongodb')
 const Settings = require('settings-sharelatex')
 const request = require('request')
 const rclient = require('redis').createClient(Settings.redis.history) // Only works locally for now
diff --git a/services/track-changes/test/acceptance/js/GettingADiffTests.js b/services/track-changes/test/acceptance/js/GettingADiffTests.js
index 4830f338d4..926d005164 100644
--- a/services/track-changes/test/acceptance/js/GettingADiffTests.js
+++ b/services/track-changes/test/acceptance/js/GettingADiffTests.js
@@ -13,9 +13,7 @@ const sinon = require('sinon')
 const chai = require('chai')
 chai.should()
 const { expect } = chai
-const mongojs = require('../../../app/js/mongojs')
-const { db } = mongojs
-const { ObjectId } = mongojs
+const { ObjectId } = require('../../../app/js/mongodb')
 const Settings = require('settings-sharelatex')
 
 const TrackChangesApp = require('./helpers/TrackChangesApp')
diff --git a/services/track-changes/test/acceptance/js/GettingUpdatesTests.js b/services/track-changes/test/acceptance/js/GettingUpdatesTests.js
index 052cb405e7..83bd985241 100644
--- a/services/track-changes/test/acceptance/js/GettingUpdatesTests.js
+++ b/services/track-changes/test/acceptance/js/GettingUpdatesTests.js
@@ -14,9 +14,7 @@ const sinon = require('sinon')
 const chai = require('chai')
 chai.should()
 const { expect } = chai
-const mongojs = require('../../../app/js/mongojs')
-const { db } = mongojs
-const { ObjectId } = mongojs
+const { ObjectId } = require('../../../app/js/mongodb')
 const Settings = require('settings-sharelatex')
 
 const TrackChangesApp = require('./helpers/TrackChangesApp')
diff --git a/services/track-changes/test/acceptance/js/LockManagerTests.js b/services/track-changes/test/acceptance/js/LockManagerTests.js
index 484d1a9bc6..b6f8908554 100644
--- a/services/track-changes/test/acceptance/js/LockManagerTests.js
+++ b/services/track-changes/test/acceptance/js/LockManagerTests.js
@@ -13,8 +13,6 @@ const sinon = require('sinon')
 const chai = require('chai')
 chai.should()
 const { expect } = chai
-const mongojs = require('../../../app/js/mongojs')
-const { ObjectId } = mongojs
 const Settings = require('settings-sharelatex')
 const LockManager = require('../../../app/js/LockManager')
 const rclient = require('redis').createClient(Settings.redis.history) // Only works locally for now
diff --git a/services/track-changes/test/acceptance/js/RestoringVersions.js b/services/track-changes/test/acceptance/js/RestoringVersions.js
index 8afef4b168..d4d5d60304 100644
--- a/services/track-changes/test/acceptance/js/RestoringVersions.js
+++ b/services/track-changes/test/acceptance/js/RestoringVersions.js
@@ -13,9 +13,7 @@ const sinon = require('sinon')
 const chai = require('chai')
 chai.should()
 const { expect } = chai
-const mongojs = require('../../../app/js/mongojs')
-const { db } = mongojs
-const { ObjectId } = mongojs
+const { ObjectId } = require('../../../app/js/mongodb')
 const Settings = require('settings-sharelatex')
 
 const TrackChangesApp = require('./helpers/TrackChangesApp')
diff --git a/services/track-changes/test/acceptance/js/helpers/TrackChangesClient.js b/services/track-changes/test/acceptance/js/helpers/TrackChangesClient.js
index cca55a87aa..4e5612cb6d 100644
--- a/services/track-changes/test/acceptance/js/helpers/TrackChangesClient.js
+++ b/services/track-changes/test/acceptance/js/helpers/TrackChangesClient.js
@@ -19,7 +19,7 @@ const request = require('request')
 const Settings = require('settings-sharelatex')
 const rclient = require('redis-sharelatex').createClient(Settings.redis.history) // Only works locally for now
 const Keys = Settings.redis.history.key_schema
-const { db, ObjectId } = require('../../../../app/js/mongojs')
+const { db, ObjectId } = require('../../../../app/js/mongodb')
 
 const aws = require('aws-sdk')
 const s3 = new aws.S3({
@@ -87,11 +87,11 @@ module.exports = TrackChangesClient = {
     if (callback == null) {
       callback = function (error, updates) {}
     }
-    return db.projectHistoryMetaData.find(
+    return db.projectHistoryMetaData.findOne(
       {
         project_id: ObjectId(project_id)
       },
-      (error, projects) => callback(error, projects[0])
+      callback
     )
   },
 
@@ -99,7 +99,7 @@ module.exports = TrackChangesClient = {
     if (callback == null) {
       callback = function (error) {}
     }
-    return db.projectHistoryMetaData.update(
+    return db.projectHistoryMetaData.updateOne(
       {
         project_id: ObjectId(project_id)
       },