diff --git a/Assignment4.md b/Assignment4.md
index a60956c..9de9578 100644
--- a/Assignment4.md
+++ b/Assignment4.md
@@ -42,7 +42,7 @@
 
 #### 1）在产品中选择云数据库UDB
 <kbd>
-  <img src="img/udb.jpeg">
+  <img src="img/assignment4/udb.jpeg">
 </kbd>
 
 #### 2）让我们看看在UCloud上可以创建哪些数据库 :blush: