diff --git a/index.zh_CN.html b/index.zh_CN.html
index 8b7c41a..179a772 100644
--- a/index.zh_CN.html
+++ b/index.zh_CN.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en" xmlns="http://www.w3.org/1999/html">
+<html lang="zh-CN" xmlns="http://www.w3.org/1999/html">
 <head>
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
