diff --git a/packages/activemodel-adapter/lib/system/active-model-serializer.js b/packages/activemodel-adapter/lib/system/active-model-serializer.js
index 21dc587cf19..674556cf260 100644
--- a/packages/activemodel-adapter/lib/system/active-model-serializer.js
+++ b/packages/activemodel-adapter/lib/system/active-model-serializer.js
@@ -5,7 +5,7 @@ import normalizeModelName from "ember-data/system/normalize-model-name";
   @module ember-data
 */
 
-var forEach = Ember.EnumerableUtils.forEach;
+var forEach = Ember.ArrayPolyfills.forEach;
 var camelize =   Ember.String.camelize;
 var classify = Ember.String.classify;
 var decamelize = Ember.String.decamelize;
@@ -280,7 +280,7 @@ var ActiveModelSerializer = RESTSerializer.extend({
             payload.type = this.modelNameFromPayloadKey(payload.type);
           } else if (payload && relationship.kind === "hasMany") {
             var self = this;
-            forEach(payload, function(single) {
+            forEach.call(payload, function(single) {
               single.type = self.modelNameFromPayloadKey(single.type);
             });
           }
diff --git a/packages/ember-data/lib/serializers/json-api-serializer.js b/packages/ember-data/lib/serializers/json-api-serializer.js
index f7257c62daa..8666bf09204 100644
--- a/packages/ember-data/lib/serializers/json-api-serializer.js
+++ b/packages/ember-data/lib/serializers/json-api-serializer.js
@@ -7,7 +7,7 @@ import normalizeModelName from 'ember-data/system/normalize-model-name';
 import { pluralize, singularize } from 'ember-inflector/lib/system/string';
 
 var dasherize = Ember.String.dasherize;
-var map = Ember.EnumerableUtils.map;
+var map = Ember.ArrayPolyfills.map;
 
 /**
   @class JSONAPISerializer
@@ -37,11 +37,11 @@ export default JSONSerializer.extend({
     if (Ember.typeOf(documentHash.data) === 'object') {
       documentHash.data = this._normalizeResourceHelper(documentHash.data);
     } else {
-      documentHash.data = map(documentHash.data, this._normalizeResourceHelper, this);
+      documentHash.data = map.call(documentHash.data, this._normalizeResourceHelper, this);
     }
 
     if (Ember.typeOf(documentHash.included) === 'array') {
-      documentHash.included = map(documentHash.included, this._normalizeResourceHelper, this);
+      documentHash.included = map.call(documentHash.included, this._normalizeResourceHelper, this);
     }
 
     return documentHash;
@@ -133,7 +133,7 @@ export default JSONSerializer.extend({
     }
 
     if (Ember.typeOf(relationshipHash.data) === 'array') {
-      relationshipHash.data = map(relationshipHash.data, this._normalizeRelationshipDataHelper, this);
+      relationshipHash.data = map.call(relationshipHash.data, this._normalizeRelationshipDataHelper, this);
     }
 
     return relationshipHash;
@@ -327,7 +327,7 @@ export default JSONSerializer.extend({
           payloadKey = this.keyForRelationship(key, 'hasMany', 'serialize');
         }
 
-        let data = map(hasMany, (item) => {
+        let data = map.call(hasMany, (item) => {
           return {
             type: this.payloadKeyFromModelName(item.modelName),
             id: item.id