diff --git a/README.md b/README.md
index 62137458..88d9eb80 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@
     <tr>
       <td align="center" valign="middle">
         <a href="https://w.url.cn/s/AS6JeXA">
-          <img src="http://javaguide.cn/991599477417_.pic_hd.jpg" style="margin: 0 auto;width:450px" /></a>
+          <img src="https://img-service.csdnimg.cn/img_convert/3556d24d84c4880abaf280ed833faccc.png#pic_center" style="margin: 0 auto;width:450px" /></a>
       </td>        
     </tr>
   </tbody>