--- a/common/corpus-common-addon/tests/.jshintrc	Tue Nov 08 18:23:01 2016 +0100
+++ b/common/corpus-common-addon/tests/.jshintrc	Wed Nov 09 15:05:41 2016 +0100
@@ -47,6 +47,6 @@
   "strict": false,
   "white": false,
   "eqnull": true,
-  "esnext": true,
+  "esversion": 6,
   "unused": true
 }