diff --git a/index.html b/index.html
index 22ee7a2..551e536 100644
--- a/index.html
+++ b/index.html
@@ -8,11 +8,11 @@
     <!-- IE required polyfills, in this exact order -->
     <script src="https://cdnjs.cloudflare.com/ajax/libs/es6-shim/0.33.3/es6-shim.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.20/system-polyfills.js"></script>
-    <script src="https://npmcdn.com/angular2@2.0.0-beta.8/es6/dev/src/testing/shims_for_IE.js"></script>
+    <script src="https://unpkg.com/angular2@2.0.0-beta.8/es6/dev/src/testing/shims_for_IE.js"></script>
     
     <script src="https://code.angularjs.org/2.0.0-beta.8/angular2-polyfills.js"></script>
     <script src="https://code.angularjs.org/tools/system.js"></script>
-    <script src="https://npmcdn.com/typescript@1.8.2/lib/typescript.js"></script>
+    <script src="https://unpkg.com/typescript@1.8.2/lib/typescript.js"></script>
     <script src="https://code.angularjs.org/2.0.0-beta.8/Rx.js"></script>
     <script src="https://code.angularjs.org/2.0.0-beta.8/angular2.dev.js"></script>
     <script>