diff --git a/2000/01/01/hello-world/index.html b/2000/01/01/hello-world/index.html
index 9dd92c5f..9b074bd7 100644
--- a/2000/01/01/hello-world/index.html
+++ b/2000/01/01/hello-world/index.html
@@ -371,7 +371,7 @@
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/Wechatpay.jpg" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/Wechatpay.png" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
diff --git a/2018/11/16/BIBA访问控制模型实现(python)/index.html b/2018/11/16/BIBA访问控制模型实现(python)/index.html
index a876ce47..d4f255b9 100644
--- a/2018/11/16/BIBA访问控制模型实现(python)/index.html
+++ b/2018/11/16/BIBA访问控制模型实现(python)/index.html
@@ -520,7 +520,7 @@
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/Wechatpay.jpg" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/Wechatpay.png" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
diff --git a/2019/01/16/wifi半双工侧信道攻击学习笔记/index.html b/2019/01/16/wifi半双工侧信道攻击学习笔记/index.html
index 3eadeff9..22e6f767 100644
--- a/2019/01/16/wifi半双工侧信道攻击学习笔记/index.html
+++ b/2019/01/16/wifi半双工侧信道攻击学习笔记/index.html
@@ -551,7 +551,7 @@ Server   -------wire----------|
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/Wechatpay.jpg" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/Wechatpay.png" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
diff --git a/2019/02/22/qq数据库的加密解密/index.html b/2019/02/22/qq数据库的加密解密/index.html
index 2e87d360..d94a28f0 100644
--- a/2019/02/22/qq数据库的加密解密/index.html
+++ b/2019/02/22/qq数据库的加密解密/index.html
@@ -399,7 +399,7 @@
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/Wechatpay.jpg" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/Wechatpay.png" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
diff --git a/2019/03/16/小米固件工具mkxqimage/index.html b/2019/03/16/小米固件工具mkxqimage/index.html
index 1bf12a34..90892cc5 100644
--- a/2019/03/16/小米固件工具mkxqimage/index.html
+++ b/2019/03/16/小米固件工具mkxqimage/index.html
@@ -406,7 +406,7 @@
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/Wechatpay.jpg" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/Wechatpay.png" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
diff --git a/images/Wechatpay.jpg b/images/Wechatpay.png
similarity index 99%
rename from images/Wechatpay.jpg
rename to images/Wechatpay.png
index b01dbdf4..dba4c0d7 100644
Binary files a/images/Wechatpay.jpg and b/images/Wechatpay.png differ