diff --git a/01.png b/01.png
deleted file mode 100644
index 0d1c934..0000000
Binary files a/01.png and /dev/null differ
diff --git a/README-zh-simple.md b/README-zh-simple.md
index 2ae8001..6caf512 100644
--- a/README-zh-simple.md
+++ b/README-zh-simple.md
@@ -17,7 +17,7 @@
 
 <br/><br/>
 <p align="center">
-<img src="01.png" alt="Regular expression">
+<img src="https://i.imgur.com/Pq5Llat.png" alt="Regular expression">
 </p>
 
 以上的正则表达式可以接受 `john_doe`, `jo-hn_doe`, `john12_as`.