diff -r 48f5380c26d0 -r 1190ea937f2d cms/app-client/mirage/serializers/language.js
--- a/cms/app-client/mirage/serializers/language.js	Fri Jun 09 15:22:02 2017 +0200
+++ b/cms/app-client/mirage/serializers/language.js	Sat Jun 10 08:33:03 2017 +0200
@@ -1,6 +1,6 @@
 import { JSONAPISerializer } from 'ember-cli-mirage';
 
-import _ from 'lodash/lodash';
+import _ from 'lodash';
 
 export default JSONAPISerializer.extend({
     serialize(response, request) {
@@ -16,6 +16,6 @@
         })};
       }
 
-      return {'languages' : _(json.data).map((lang) => { return [lang.id, lang.attributes.count];}).object().value()};
+      return {'languages' : _(json.data).map((lang) => { return [lang.id, lang.attributes.count];}).fromPairs().value()};
     }
 });