diff --git a/app/app/pods/customize/users/controller.js b/app/app/pods/customize/users/controller.js
index c788ea0c..b684154f 100644
--- a/app/app/pods/customize/users/controller.js
+++ b/app/app/pods/customize/users/controller.js
@@ -20,23 +20,22 @@ export default Ember.Controller.extend(NotifierMixin, {
                 return;
             }
 
-            var self = this;
 			$("#newUserFirstname").removeClass("error");
 			$("#newUserLastname").removeClass("error");
 			$("#newUserEmail").removeClass("error");
 
-            this.get('userService').add(this.get('newUser')).then(function(/*user*/) {
-                self.showNotification('Added');
-                self.set('newUser', { firstname: "", lastname: "", email: "", active: true });
-                $("#newUserFirstname").focus();
-
-				self.get('userService').getAll().then(function(users) {
-                    self.set('model', users);
+            this.get('userService')
+                .add(this.get('newUser'))
+                .then((user) => {
+                    this.showNotification('Added');
+                    this.set('newUser', { firstname: "", lastname: "", email: "", active: true });
+                    $("#newUserFirstname").focus();
+                    this.get('model').pushObject(user);
+                })
+                .catch(function(){
+                    let msg = error.status === 409 ? 'Unable to add duplicate user' : 'Unable to add user';
+                    self.showNotification(msg);
                 });
-            }, function(error) {
-                let msg = error.status === 409 ? 'Unable to add duplicate user' : 'Unable to add user';
-                self.showNotification(msg);
-            });
         },
 
         onDelete(user) {
diff --git a/app/app/services/user.js b/app/app/services/user.js
index 186d863a..121f5a8f 100644
--- a/app/app/services/user.js
+++ b/app/app/services/user.js
@@ -14,24 +14,18 @@ import models from '../utils/model';
 
 export default Ember.Service.extend({
     sessionService: Ember.inject.service('session'),
+    ajax: Ember.inject.service(),
 
     // Adds a new user.
     add(user) {
         let url = this.get('sessionService').appMeta.getUrl(`users`);
 
-        return new Ember.RSVP.Promise(function(resolve, reject) {
-            $.ajax({
-                url: url,
-                type: 'POST',
-                data: JSON.stringify(user),
-                contentType: 'json',
-                success: function(response) {
-                    resolve(models.UserModel.create(response));
-                },
-                error: function(reason) {
-                    reject(reason);
-                }
-            });
+        return this.get('ajax').request(url, {
+            type: 'POST',
+            data: JSON.stringify(user),
+            contentType: 'json'
+        }).then(function(response){
+            return models.UserModel.create(response);
         });
     },
 
@@ -57,21 +51,9 @@ export default Ember.Service.extend({
     getAll() {
         let url = this.get('sessionService').appMeta.getUrl(`users`);
 
-        return new Ember.RSVP.Promise(function(resolve, reject) {
-            $.ajax({
-                url: url,
-                type: 'GET',
-                success: function(response) {
-                    let data = [];
-                    _.each(response, function(obj) {
-                        data.pushObject(models.UserModel.create(obj));
-                    });
-
-                    resolve(data);
-                },
-                error: function(reason) {
-                    reject(reason);
-                }
+        return this.get('ajax').request(url).then((response) => {
+            return response.map(function(obj){
+                return models.UserModel.create(obj);
             });
         });
     },
@@ -104,19 +86,10 @@ export default Ember.Service.extend({
         let userId = user.get('id');
         let url = this.get('sessionService').appMeta.getUrl(`users/${userId}`);
 
-        return new Ember.RSVP.Promise(function(resolve, reject) {
-            $.ajax({
-                url: url,
-                type: 'PUT',
-                data: JSON.stringify(user),
-                contentType: 'json',
-                success: function(response) {
-                    resolve(response);
-                },
-                error: function(reason) {
-                    reject(reason);
-                }
-            });
+        return this.get('ajax').request(url, {
+            type: 'PUT',
+            data: JSON.stringify(user),
+            contentType: 'json'
         });
     },
 
@@ -209,4 +182,4 @@ export default Ember.Service.extend({
             });
         });
     }
-});
\ No newline at end of file
+});
diff --git a/app/package.json b/app/package.json
index 155890d2..afab26ad 100644
--- a/app/package.json
+++ b/app/package.json
@@ -20,7 +20,7 @@
   "license": "MIT",
   "devDependencies": {
     "broccoli-asset-rev": "^2.4.2",
-    "ember-ajax": "0.7.1",
+    "ember-ajax": "2.3.2",
     "ember-cli": "2.5.0",
     "ember-cli-app-version": "^1.0.0",
     "ember-cli-babel": "^5.1.6",