diff --git a/notes/52. 两个链表的第一个公共结点.md b/notes/52. 两个链表的第一个公共结点.md
index 8b7434a6..485c2214 100644
--- a/notes/52. 两个链表的第一个公共结点.md	
+++ b/notes/52. 两个链表的第一个公共结点.md	
@@ -4,7 +4,7 @@
 
 ## 题目描述
 
-<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/5f1cb999-cb9a-4f6c-a0af-d90377295ab8.png" width="500"/> </div><br>
+<div align="center"> <img src="pics/offer-intersect-list.png" width="640px"/> </div><br>
 
 ## 解题思路
 
diff --git a/notes/pics/offer-intersect-list.png b/notes/pics/offer-intersect-list.png
new file mode 100644
index 00000000..9a38e79a
Binary files /dev/null and b/notes/pics/offer-intersect-list.png differ