diff --git a/logviewer.html b/logviewer.html
index 05c1cea..0bab04c 100644
--- a/logviewer.html
+++ b/logviewer.html
@@ -58,7 +58,7 @@
     </button>
 
     <script
-        src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-d/reconnecting-websocket/1.0.0/reconnecting-websocket.min.js"
+        src="https://mirrors.sustech.edu.cn/cdnjs/ajax/libs/reconnecting-websocket/1.0.0/reconnecting-websocket.min.js"
         type="application/javascript"></script>
 
     <script>