diff --git a/source/version_two/user_guide/quick_start/receipt.md b/source/version_two/user_guide/quick_start/receipt.md
index 41925c2..fed8182 100644
--- a/source/version_two/user_guide/quick_start/receipt.md
+++ b/source/version_two/user_guide/quick_start/receipt.md
@@ -40,8 +40,8 @@
 | -------------- | ---- |
 | 电源模块/深度相机集线器 | 1    |
 
-![](imgs/receipt-3-1.JPG)
-![](imgs/receipt-3-2.JPG)
+![](imgs/receipt-3-1.jpg)
+![](imgs/receipt-3-2.jpg)
 
 
 ## 深度相机