diff --git a/services/web/scripts/sync_v1_subscriptions.js b/services/web/scripts/sync_v1_subscriptions.js
new file mode 100644
index 0000000000..2f56eb7f56
--- /dev/null
+++ b/services/web/scripts/sync_v1_subscriptions.js
@@ -0,0 +1,64 @@
+const {db} = require('../app/js/infrastructure/mongojs')
+const FeaturesUpdater = require(
+  '../app/js/Features/Subscription/FeaturesUpdater'
+)
+const V1SubscriptionManager = require(
+  '../app/js/Features/Subscription/V1SubscriptionManager'
+)
+const async = require('async')
+const logger = require('logger-sharelatex')
+logger.logger.level('error')
+
+const areFeaturesEqual = function(featuresA, featuresB) {
+  for (const feature in featuresA) {
+    if (featuresA[feature] !== featuresB[feature]) {
+      return false
+    }
+  }
+  return true
+}
+
+var outOfSyncUserCount = 0
+var userCount = null
+
+db.users.find({
+  'overleaf.id': { $exists: true }
+}, {
+  overleaf: 1,
+  features: 1
+}, function (error, users) {
+  if (error) throw error
+  console.log('USER COUNT', userCount = users.length)
+  async.mapSeries(users, function (user, callback) {
+    console.log('REFRESHING IN v2', user._id)
+    FeaturesUpdater.refreshFeatures(user._id, false, function (error) {
+      if (error) console.error('ERROR', error)
+      console.log('REFRESHING IN v1', user._id)
+      V1SubscriptionManager.notifyV1OfFeaturesChange(
+        user._id,
+        function (error) {
+          if (error) console.error('ERROR', error)
+          db.users.find({
+            _id: user._id
+          }, {
+            features: 1
+          }, function (error, [updatedUser]) {
+            if (error) throw error
+            if (areFeaturesEqual(user.features, updatedUser.features)) {
+              console.log('UNCHANGED', user._id)
+            } else {
+              console.log('MODIFIED', user._id)
+              outOfSyncUserCount = outOfSyncUserCount + 1
+            }
+            callback()
+          })
+        }
+      )
+    })
+  }, function (error) {
+    if (error) throw error
+    console.log('FINISHED!')
+    console.log('OUT OF SYNC USERS', outOfSyncUserCount, '/', userCount)
+    process.exit()
+  })
+})