diff --git a/sa-token-doc/doc/index.html b/sa-token-doc/doc/index.html
index 0eba61d9..296f8465 100644
--- a/sa-token-doc/doc/index.html
+++ b/sa-token-doc/doc/index.html
@@ -22,6 +22,7 @@
 		<nav>
 			<select onchange="location.href=this.value">
 				<option value="http://sa-token.dev33.cn/doc/index.html">最新版</option>
+				<option value="http://sa-token.dev33.cn/v/v1.5.1/doc/index.html">v1.5.1</option>
 				<option value="http://sa-token.dev33.cn/v/v1.4.0/doc/index.html">v1.4.0</option>
 			</select>
 			<a href="/">首页</a>