diff --git a/2000/01/01/hello-world/index.html b/2000/01/01/hello-world/index.html
index 6747e326..bea79e4f 100644
--- a/2000/01/01/hello-world/index.html
+++ b/2000/01/01/hello-world/index.html
@@ -371,14 +371,14 @@
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/wechatpay.png" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/wechatpay.jpg" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
 
     
       <div id="alipay" style="display: inline-block">
-        <img id="alipay_qr" src="/images/alipay.png" alt="Cool-Y 支付宝">
+        <img id="alipay_qr" src="/images/alipay.jpg" alt="Cool-Y 支付宝">
         <p>支付宝</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 beb441a0..434bacb9 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
@@ -520,14 +520,14 @@
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/wechatpay.png" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/wechatpay.jpg" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
 
     
       <div id="alipay" style="display: inline-block">
-        <img id="alipay_qr" src="/images/alipay.png" alt="Cool-Y 支付宝">
+        <img id="alipay_qr" src="/images/alipay.jpg" alt="Cool-Y 支付宝">
         <p>支付宝</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 65250ec6..63570f30 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
@@ -551,14 +551,14 @@ Server   -------wire----------|
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/wechatpay.png" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/wechatpay.jpg" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
 
     
       <div id="alipay" style="display: inline-block">
-        <img id="alipay_qr" src="/images/alipay.png" alt="Cool-Y 支付宝">
+        <img id="alipay_qr" src="/images/alipay.jpg" alt="Cool-Y 支付宝">
         <p>支付宝</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 3bed2d1a..3a9c0d86 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
@@ -399,14 +399,14 @@
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/wechatpay.png" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/wechatpay.jpg" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
 
     
       <div id="alipay" style="display: inline-block">
-        <img id="alipay_qr" src="/images/alipay.png" alt="Cool-Y 支付宝">
+        <img id="alipay_qr" src="/images/alipay.jpg" alt="Cool-Y 支付宝">
         <p>支付宝</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 c8f592c4..5c812721 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
@@ -406,14 +406,14 @@
 
     
       <div id="wechat" style="display: inline-block">
-        <img id="wechat_qr" src="/images/wechatpay.png" alt="Cool-Y 微信支付">
+        <img id="wechat_qr" src="/images/wechatpay.jpg" alt="Cool-Y 微信支付">
         <p>微信支付</p>
       </div>
     
 
     
       <div id="alipay" style="display: inline-block">
-        <img id="alipay_qr" src="/images/alipay.png" alt="Cool-Y 支付宝">
+        <img id="alipay_qr" src="/images/alipay.jpg" alt="Cool-Y 支付宝">
         <p>支付宝</p>
       </div>