diff --git a/README.md b/README.md
index fd9917c..9768d3f 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 
 <div align="center">  
 
-<img src="https://ws4.sinaimg.cn/large/006tNbRwly1fxd5z1bngjj30p00p0gm4.jpg" width="300" /> 
+<img src="https://ws4.sinaimg.cn/large/006tNbRwly1fxd5z1bngjj30p00p0gm4.jpg" width="600" /> 
 <br/>
 
 [![Build Status](https://travis-ci.org/crossoverJie/cicada.svg?branch=master)](https://travis-ci.org/crossoverJie/cicada)