diff --git a/source/404.html b/source/404.html
index 78b9173..ae32a31 100644
--- a/source/404.html
+++ b/source/404.html
@@ -63,7 +63,7 @@
           <h3>
             Please check it, Maybe you should read
             <a href="https://hexo.io/docs/">Hexo</a> and
-            <a href="https://shen-yu.gitee.io/2019/ayer/">Ayer</a> Docs
+            <a href="https://github.com/Shen-Yu/hexo-theme-ayer">Ayer</a> Docs
             carefully.
           </h3>
           <h3>