diff --git a/images/banners/aliyun.jpg b/images/banners/aliyun.jpg
index 5fe5e8a70..c4b0ba0eb 100644
Binary files a/images/banners/aliyun.jpg and b/images/banners/aliyun.jpg differ
diff --git a/images/banners/coding.jpg b/images/banners/coding.jpg
index f4188b46f..23e788e7b 100644
Binary files a/images/banners/coding.jpg and b/images/banners/coding.jpg differ
diff --git a/images/banners/tcloud.jpg b/images/banners/tcloud.jpg
index c6ab6d402..341032cd4 100644
Binary files a/images/banners/tcloud.jpg and b/images/banners/tcloud.jpg differ
diff --git a/images/banners/wiki.jpg b/images/banners/wiki.jpg
index 1dbc97a5a..d36d64193 100644
Binary files a/images/banners/wiki.jpg and b/images/banners/wiki.jpg differ
diff --git a/images/qrcodes/alipay.jpg b/images/qrcodes/alipay.jpg
index 6cccac8b1..017acdbe4 100644
Binary files a/images/qrcodes/alipay.jpg and b/images/qrcodes/alipay.jpg differ
diff --git a/images/qrcodes/cp.png b/images/qrcodes/cp.png
index e849c8481..69e716ec2 100644
Binary files a/images/qrcodes/cp.png and b/images/qrcodes/cp.png differ
diff --git a/images/qrcodes/mp.png b/images/qrcodes/mp.png
index d0775933c..cde43b77e 100644
Binary files a/images/qrcodes/mp.png and b/images/qrcodes/mp.png differ
diff --git a/images/qrcodes/wepay.jpg b/images/qrcodes/wepay.jpg
index 85a7cd8e5..4fca9a464 100644
Binary files a/images/qrcodes/wepay.jpg and b/images/qrcodes/wepay.jpg differ
diff --git a/weixin-java-cp/src/test/resources/mm.jpeg b/weixin-java-cp/src/test/resources/mm.jpeg
index 183699e96..e1a0cea70 100644
Binary files a/weixin-java-cp/src/test/resources/mm.jpeg and b/weixin-java-cp/src/test/resources/mm.jpeg differ
diff --git a/weixin-java-miniapp/src/test/resources/tmp.png b/weixin-java-miniapp/src/test/resources/tmp.png
index 5cb4a4060..7c3a48838 100644
Binary files a/weixin-java-miniapp/src/test/resources/tmp.png and b/weixin-java-miniapp/src/test/resources/tmp.png differ
diff --git a/weixin-java-mp/src/test/resources/mm.jpeg b/weixin-java-mp/src/test/resources/mm.jpeg
index 183699e96..e1a0cea70 100644
Binary files a/weixin-java-mp/src/test/resources/mm.jpeg and b/weixin-java-mp/src/test/resources/mm.jpeg differ