diff --git a/docs/images/dingding.jpg b/docs/images/dingding.jpg
index 4cdad2830..e12e95296 100644
Binary files a/docs/images/dingding.jpg and b/docs/images/dingding.jpg differ
diff --git a/docs/images/wechat.png b/docs/images/wechat.png
index e7b734917..9fc6f4e17 100644
Binary files a/docs/images/wechat.png and b/docs/images/wechat.png differ