diff --git a/resource/template/common/header.html b/resource/template/common/header.html
index d89417ff..45b402d6 100644
--- a/resource/template/common/header.html
+++ b/resource/template/common/header.html
@@ -7,7 +7,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <meta http-equiv="X-UA-Compatible" content="ie=edge">
     <title>{{.Title}}</title>
-    <link rel="stylesheet" type="text/css" href="https://cdn.bootcdn.net/ajax/libs/semantic-ui/2.4.1/semantic.min.css">
+    <link rel="stylesheet" type="text/css" href="https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-M/semantic-ui/2.4.1/semantic.min.css">
     <link rel="stylesheet" type="text/css" href="/static/semantic-ui-alerts.min.css">
     <link rel="stylesheet" type="text/css" href="/static/main.css?v2021111109">
     <link rel="shortcut icon" type="image/png" href="/static/logo.svg?v20210804" />