diff --git a/notes/34. 二叉树中和为某一值的路径.md b/notes/34. 二叉树中和为某一值的路径.md
index 4280e610..2c0ee03e 100644
--- a/notes/34. 二叉树中和为某一值的路径.md	
+++ b/notes/34. 二叉树中和为某一值的路径.md	
@@ -8,7 +8,7 @@
 
 下图的二叉树有两条和为 22 的路径：10, 5, 7 和 10, 12
 
-<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/ed77b0e6-38d9-4a34-844f-724f3ffa2c12.jpg" width="200"/> </div><br>
+<div align="center"> <img src="pics/offer34-path-sum.png" width="400px"/> </div><br>
 
 ## 解题思路
 
diff --git a/notes/pics/offer34-path-sum.png b/notes/pics/offer34-path-sum.png
new file mode 100644
index 00000000..cb888cb8
Binary files /dev/null and b/notes/pics/offer34-path-sum.png differ