diff --git a/services/project-history/test/acceptance/js/DiscardingUpdatesTests.js b/services/project-history/test/acceptance/js/DiscardingUpdatesTests.js
index c5436af974..c86db7acd8 100644
--- a/services/project-history/test/acceptance/js/DiscardingUpdatesTests.js
+++ b/services/project-history/test/acceptance/js/DiscardingUpdatesTests.js
@@ -1,20 +1,3 @@
-/* eslint-disable
-    no-undef,
-    no-unused-vars,
-*/
-// TODO: This file was created by bulk-decaffeinate.
-// Fix any style issues and re-enable lint.
-/*
- * decaffeinate suggestions:
- * DS102: Remove unnecessary code created because of implicit returns
- * DS207: Consider shorter variations of null checks
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
- */
-import async from 'async'
-import sinon from 'sinon'
-import { expect } from 'chai'
-import Settings from '@overleaf/settings'
-import assert from 'node:assert'
 import mongodb from 'mongodb-legacy'
 import nock from 'nock'
 import * as ProjectHistoryClient from './helpers/ProjectHistoryClient.js'
@@ -25,49 +8,31 @@ const MockHistoryStore = () => nock('http://127.0.0.1:3100')
 const MockWeb = () => nock('http://127.0.0.1:3000')
 
 describe('DiscardingUpdates', function () {
-  beforeEach(function (done) {
+  beforeEach(async function () {
     this.timestamp = new Date()
 
-    return ProjectHistoryApp.ensureRunning(error => {
-      if (error != null) {
-        throw error
-      }
-      this.user_id = new ObjectId().toString()
-      this.project_id = new ObjectId().toString()
-      this.doc_id = new ObjectId().toString()
+    await ProjectHistoryApp.promises.ensureRunning()
+    this.user_id = new ObjectId().toString()
+    this.project_id = new ObjectId().toString()
+    this.doc_id = new ObjectId().toString()
 
-      MockHistoryStore().post('/api/projects').reply(200, {
-        projectId: 0,
-      })
-      MockWeb()
-        .get(`/project/${this.project_id}/details`)
-        .reply(200, { name: 'Test Project' })
-      return ProjectHistoryClient.initializeProject(this.project_id, done)
+    MockHistoryStore().post('/api/projects').reply(200, {
+      projectId: 0,
     })
+    MockWeb()
+      .get(`/project/${this.project_id}/details`)
+      .reply(200, { name: 'Test Project' })
+    await ProjectHistoryClient.promises.initializeProject(this.project_id)
   })
 
-  return it('should discard updates', function (done) {
-    return async.series(
-      [
-        cb => {
-          const update = {
-            pathname: '/main.tex',
-            docLines: 'a\nb',
-            doc: this.doc_id,
-            meta: { user_id: this.user_id, ts: new Date() },
-          }
-          return ProjectHistoryClient.pushRawUpdate(this.project_id, update, cb)
-        },
-        cb => {
-          return ProjectHistoryClient.flushProject(this.project_id, cb)
-        },
-      ],
-      error => {
-        if (error != null) {
-          throw error
-        }
-        return done()
-      }
-    )
+  it('should discard updates', async function () {
+    const update = {
+      pathname: '/main.tex',
+      docLines: 'a\nb',
+      doc: this.doc_id,
+      meta: { user_id: this.user_id, ts: new Date() },
+    }
+    await ProjectHistoryClient.promises.pushRawUpdate(this.project_id, update)
+    await ProjectHistoryClient.promises.flushProject(this.project_id)
   })
 })
diff --git a/services/project-history/test/acceptance/js/helpers/ProjectHistoryClient.js b/services/project-history/test/acceptance/js/helpers/ProjectHistoryClient.js
index ed22e2057b..1c6f9c3451 100644
--- a/services/project-history/test/acceptance/js/helpers/ProjectHistoryClient.js
+++ b/services/project-history/test/acceptance/js/helpers/ProjectHistoryClient.js
@@ -363,4 +363,5 @@ export const promises = {
   getDump: promisify(getDump),
   setFailure: promisify(setFailure),
   getDiff: promisify(getDiff),
+  flushProject: promisify(flushProject),
 }