diff --git a/admin/index.html b/admin/index.html
index 70e5291..a408b16 100644
--- a/admin/index.html
+++ b/admin/index.html
@@ -4,13 +4,13 @@
   <meta charset="utf-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
-  <link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/element-ui/2.13.1/theme-chalk/index.css">
-  <link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/nprogress/0.2.0/nprogress.min.css">
-  <script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.11/vue.min.js"></script>
-  <script src="https://cdn.bootcdn.net/ajax/libs/vue-router/3.1.3/vue-router.min.js"></script>
-  <script src="https://cdn.bootcdn.net/ajax/libs/element-ui/2.13.1/index.js"></script>
-  <script src="https://cdn.bootcdn.net/ajax/libs/axios/0.19.2/axios.min.js"></script>
-  <script src="https://cdn.bootcdn.net/ajax/libs/nprogress/0.2.0/nprogress.min.js"></script>
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/element-ui@2.13.1/lib/theme-chalk/index.css">
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/nprogress@0.2.0/nprogress.css">
+  <script src="https://cdn.jsdelivr.net/npm/vue@2.6.11/dist/vue.min.js"></script>
+  <script src="https://cdn.jsdelivr.net/npm/vue-router@3.1.6/dist/vue-router.min.js"></script>
+  <script src="https://cdn.jsdelivr.net/npm/element-ui@2.13.1/lib/index.js"></script>
+  <script src="https://cdn.jsdelivr.net/npm/axios@0.19.2/dist/axios.min.js"></script>
+  <script src="https://cdn.jsdelivr.net/npm/nprogress@0.2.0/nprogress.min.js"></script>
   <link rel="icon" href="favicon.ico">
   <title><%=process.env.VUE_APP_TITLE%></title>
   <style>