diff --git a/README.md b/README.md
index 1cbbad0..81f2339 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 
 
-[![项目演示视频封面](封面.jpg)](https://www.bilibili.com/video/BV1Rhb96QEov/)
+[![项目演示视频封面](封面.jpg)](https://www.bilibili.com/video/BV1fw846DErT/)
 
 ![输入图片说明](SPI%20Flash%E5%86%85%E5%AD%98%E5%88%86%E5%8C%BA%E5%B8%83%E5%B1%80%E8%A1%A8.jpg)