diff --git a/index.html b/index.html
index fecdf714a..24d2195d7 100644
--- a/index.html
+++ b/index.html
@@ -14,8 +14,8 @@
       }
     </script>
     <div id="app"></div>
-    <script src="//cdn.jsdelivr.net/npm/vue@2.5.2/dist/vue.runtime.min.js"></script>
-    <script src="//cdn.jsdelivr.net/npm/vue-router@2.7.0/dist/vue-router.min.js"></script>
+    <script src="//shadow.elemecdn.com/npm/vue@2.5.2/dist/vue.runtime.min.js"></script>
+    <script src="//shadow.elemecdn.com/npm/vue-router@2.7.0/dist/vue-router.min.js"></script>
   <script type="text/javascript" src="manifest.f26a061.js"></script><script type="text/javascript" src="element-ui.f26a061.js"></script><script type="text/javascript" src="docs.f26a061.js"></script></body>
   <script>
     (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){