diff --git a/types/ember/index.d.ts b/types/ember/index.d.ts
index bb268646be..8a47f00476 100755
--- a/types/ember/index.d.ts
+++ b/types/ember/index.d.ts
@@ -1182,7 +1182,7 @@ declare module 'ember' {
              * argument for all items in the enumerable. This method is often simpler/faster
              * than using a callback.
              */
-            isEvery(key: string, value: boolean): boolean;
+            isEvery(key: string, value: any): boolean;
             /**
              * Returns `true` if the passed function returns true for any item in the
              * enumeration.
@@ -1193,7 +1193,7 @@ declare module 'ember' {
              * argument for any item in the enumerable. This method is often simpler/faster
              * than using a callback.
              */
-            isAny(key: string, value?: boolean): boolean;
+            isAny(key: string, value?: any): boolean;
             /**
              * This will combine the values of the enumerator into a single value. It
              * is a useful way to collect a summary value from an enumeration. This
diff --git a/types/ember/test/array.ts b/types/ember/test/array.ts
index 38f0fad5c6..8416a4a9ec 100755
--- a/types/ember/test/array.ts
+++ b/types/ember/test/array.ts
@@ -15,7 +15,7 @@ const people = Ember.A([
 assertType<number>(people.get('length'));
 assertType<Person>(people.get('lastObject'));
 assertType<boolean>(people.isAny('isHappy'));
-assertType<boolean>(people.isAny('isHappy', false));
+assertType<boolean>(people.isAny('isHappy', 'false'));
 assertType<Ember.Enumerable<Person>>(people.filterBy('isHappy'));
 assertType<Ember.Enumerable<Person>>(people.rejectBy('isHappy'));
 assertType<Ember.Enumerable<Person>>(people.filter((person) => person.get('name') === 'Yehuda'));
diff --git a/types/ember/test/ember-tests.ts b/types/ember/test/ember-tests.ts
index 94de3bf259..f0aff2478c 100755
--- a/types/ember/test/ember-tests.ts
+++ b/types/ember/test/ember-tests.ts
@@ -131,7 +131,7 @@ const isHappy = (person: typeof Person3.prototype): boolean => {
 people2.every(isHappy);
 people2.any(isHappy);
 people2.isEvery('isHappy', true);
-people2.isAny('isHappy', true);
+people2.isAny('isHappy', 'true');
 people2.isAny('isHappy');
 
 // Examples taken from http://emberjs.com/api/classes/Em.RSVP.Promise.html