diff --git a/README.md b/README.md
index 5871c3d4..0648aa63 100755
--- a/README.md
+++ b/README.md
@@ -62,7 +62,7 @@ Canyon is a JavaScript code coverage collection platform. We address the difficu
## WeChat Group
-
+
## Developing
diff --git a/screenshots/wechat12.png b/screenshots/wechat12.png
deleted file mode 100644
index 80a98c20..00000000
Binary files a/screenshots/wechat12.png and /dev/null differ
diff --git a/screenshots/wechat15.jpg b/screenshots/wechat15.jpg
new file mode 100644
index 00000000..b1adb54e
Binary files /dev/null and b/screenshots/wechat15.jpg differ