diff --git a/README.md b/README.md
index 4e78f1c..97857d0 100644
--- a/README.md
+++ b/README.md
@@ -3,16 +3,16 @@
 
 
 
-## Composer install
+### Composer install
 
-`composer require zoujingli/wechat-developer`
+`composer require zoujingli/wechat-developer dev-master`
 
 
 
-## Github 
+### Github 
 
 https://github.com/zoujingli/WeChatDeveloper.git
 
 
 
-## 更多细节正在完整 ...
\ No newline at end of file
+### 更多细节正在完整 ...
\ No newline at end of file