diff --git a/docs/编程入门/MIT-Missing-Semester.md b/docs/编程入门/MIT-Missing-Semester.md
index b6a21546..39768d0c 100644
--- a/docs/编程入门/MIT-Missing-Semester.md
+++ b/docs/编程入门/MIT-Missing-Semester.md
@@ -13,7 +13,7 @@
 
 ## 课程资源
 
-- 课程网站：<https://missing.csail.mit.edu/2020/>
+- 课程网站：<https://missing.csail.mit.edu/>
 - 课程中文网站: <https://missing-semester-cn.github.io/>
 - 课程视频：[IAP 2020](https://www.youtube.com/playlist?list=PLyzOVJj3bHQuloKGG59rS43e29ro7I57J), [IAP 2026](https://www.youtube.com/playlist?list=PLyzOVJj3bHQunmnnTXrNbZnBaCA-ieK4L) in YouTube
 - 课程中文字幕视频：