diff --git a/doc/assets/weixin_qr.jpg b/doc/assets/weixin_qr.jpg
index 6f101c459bcc0dd554a78d17a7d4aea165fbb011..8d3b5730837bb550d51e772cf36d3aed44bf182e 100644
Binary files a/doc/assets/weixin_qr.jpg and b/doc/assets/weixin_qr.jpg differ