diff --git a/demo/index.html b/demo/index.html
index 6584a7d..0f71a0a 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -4,7 +4,7 @@
 <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <link rel="stylesheet" type="text/css" href="./css/style.css" />
-    <script src="https://npmcdn.com/vue/dist/vue.js"></script>
+    <script src="https://unpkg.com/vue/dist/vue.js"></script>
     <script type="text/javascript" src="../dist/justext.js"></script>
     <title>jusText demo</title>
 </head>
