diff --git a/test/api/v3/unit/middlewares/response.js b/test/api/v3/unit/middlewares/response.js
index cbf2f178e3..302f5b8f97 100644
--- a/test/api/v3/unit/middlewares/response.js
+++ b/test/api/v3/unit/middlewares/response.js
@@ -98,7 +98,6 @@ describe('response middleware', () => {
         {
           type: notification.type,
           id: notification.id,
-          createdAt: notification.createdAt,
           data: {},
         },
       ],
diff --git a/test/api/v3/unit/models/user.test.js b/test/api/v3/unit/models/user.test.js
index 861f8e0016..f9651c9224 100644
--- a/test/api/v3/unit/models/user.test.js
+++ b/test/api/v3/unit/models/user.test.js
@@ -55,7 +55,7 @@ describe('User Model', () => {
 
       let userToJSON = user.toJSON();
       expect(user.notifications.length).to.equal(1);
-      expect(userToJSON.notifications[0]).to.have.all.keys(['data', 'id', 'type', 'createdAt']);
+      expect(userToJSON.notifications[0]).to.have.all.keys(['data', 'id', 'type']);
       expect(userToJSON.notifications[0].type).to.equal('CRON');
       expect(userToJSON.notifications[0].data).to.eql({});
     });
@@ -67,7 +67,7 @@ describe('User Model', () => {
 
       let userToJSON = user.toJSON();
       expect(user.notifications.length).to.equal(1);
-      expect(userToJSON.notifications[0]).to.have.all.keys(['data', 'id', 'type', 'createdAt']);
+      expect(userToJSON.notifications[0]).to.have.all.keys(['data', 'id', 'type']);
       expect(userToJSON.notifications[0].type).to.equal('CRON');
       expect(userToJSON.notifications[0].data).to.eql({field: 1});
     });
diff --git a/website/server/libs/cron.js b/website/server/libs/cron.js
index 367356922b..fb99b88290 100644
--- a/website/server/libs/cron.js
+++ b/website/server/libs/cron.js
@@ -134,7 +134,7 @@ function awardLoginIncentives (user) {
   //  Remove old notifications if they exists
   user.notifications
     .toObject()
-    .find((notif, index) => {
+    .forEach((notif, index) => {
       if (notif.type === 'LOGIN_INCENTIVE') user.notifications.splice(index, 1);
     });
 
diff --git a/website/server/models/userNotification.js b/website/server/models/userNotification.js
index dae5e70769..06dd959b95 100644
--- a/website/server/models/userNotification.js
+++ b/website/server/models/userNotification.js
@@ -38,8 +38,7 @@ export let schema = new Schema({
 
 schema.plugin(baseModel, {
   noSet: ['_id', 'id'],
-  timestamps: true,
-  private: ['updatedAt'],
+  // timestamps: true, // Temporarily removed to debug a possible bug
   _id: false, // use id instead of _id
 });