diff --git a/README.md b/README.md
index 0b3e088..89ed57d 100644
--- a/README.md
+++ b/README.md
@@ -315,10 +315,12 @@ func (c *Connection) RemoveProperty(key string)
 
 `mail`:
 [danbing.at@gmail.com](mailto:danbing.at@gmail.com)
+
 `github`:
 [https://github.com/aceld](https://github.com/aceld)
-`原创书籍gitbook`:
-[http://legacy.gitbook.com/@aceld](http://legacy.gitbook.com/@aceld)
+
+`原创书籍`:
+[https://www.kancloud.cn/@aceld](https://www.kancloud.cn/@aceld)
 
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