diff --git a/_config.yml b/_config.yml
index ffedbef..26a181b 100644
--- a/_config.yml
+++ b/_config.yml
@@ -16,7 +16,7 @@ permalink: /:year/:month/:day/:title/
 # other links
 twitter_username: 
 facebook_username:
-email: cyaeyz@gmail.com
+email: GaoangLau@gmail.com
 github_username: gaonagliu
 weibo_username: 
 zhihu_username:
diff --git a/page/4about.md b/page/4about.md
index 2c0f315..73ac1f5 100644
--- a/page/4about.md
+++ b/page/4about.md
@@ -14,7 +14,7 @@ Notes, blogs on
 * `Linux` 
 * and so on.
 
-Drop me an email at [cyaeyz[at]gmail.com](mailto:cyaeyz@gmail.com) or leave a comment if you have any thoughts.
+Drop me an email at [GaoangLau[at]gmail.com](mailto:GaoangLau@gmail.com) or leave a comment if you have any thoughts.
 
 <!-- 
 算法、数据分析及机器学习笔记。请使用 Mozilla Firefox、Google Chrome 等现代浏览器浏览本博客。