diff --git a/services/track-changes/app/coffee/ProjectIterator.coffee b/services/track-changes/app/coffee/ProjectIterator.coffee
index b0bed523df..d64fc260e8 100644
--- a/services/track-changes/app/coffee/ProjectIterator.coffee
+++ b/services/track-changes/app/coffee/ProjectIterator.coffee
@@ -1,7 +1,3 @@
-async = require "async"
-_ = require "underscore"
-{db, ObjectId, BSON} = require "./mongojs"
-logger = require "logger-sharelatex"
 Heap = require "heap"
 
 module.exports = ProjectIterator =