diff --git a/config/environment.js b/config/environment.js
index 2bb4838..127a784 100644
--- a/config/environment.js
+++ b/config/environment.js
@@ -7,12 +7,7 @@ module.exports = function (environment) {
     rootURL: '',
     locationType: 'hash',
     EmberENV: {
-      EXTEND_PROTOTYPES: {
-        Array: false,
-        Date: false,
-        String: false,
-        Function: true,
-      },
+      EXTEND_PROTOTYPES: false,
       FEATURES: {
         // Here you can enable experimental features on an ember canary build
         // e.g. EMBER_NATIVE_DECORATOR_SUPPORT: true