diff --git a/README.md b/README.md
index d9f4e47638..8fd8e63bf6 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # G6: A Graph visualization framework in JavaScript.
-![](https://cdn.nlark.com/yuque/0/2018/png/156681/1535972881989-82d76a72-4457-44f1-8c4c-1fdb4da843a1.png)
+![](https://user-images.githubusercontent.com/6113694/45008751-ea465300-b036-11e8-8e2a-166cbb338ce2.png)
 
 [![](https://img.shields.io/travis/antvis/g6.svg)](https://travis-ci.org/antvis/g6)
 ![](https://img.shields.io/badge/language-javascript-red.svg)