diff --git a/README.md b/README.md
index 008711c..0d3dfee 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@
 ## 它最后长这样
 
 #### 小车：
-![demo3](https://gitea.wq520.cloud:4435/jiacai_wang/PiCamCar/raw/branch/master/picture/demo3.png)
+![demo3](https://gitea.wq520.cloud:4435/jiacai_wang/PiCamCar/raw/branch/master/picture/demo3.jpg)
 #### 没开摄像头时：
 ![demo1](https://gitea.wq520.cloud:4435/jiacai_wang/PiCamCar/raw/branch/master/picture/demo1.png)
 #### 开了摄像头：