diff --git a/docs/2024.md b/docs/2024.md
index 57cab73..a7e7c48 100644
--- a/docs/2024.md
+++ b/docs/2024.md
@@ -2,6 +2,12 @@
 
 record my journey in CS, gain from history, sometimes scandal.
 
+### 12.23
+
+#### 禁用IDM自动更新
+
+修改注册表`\HKEY_CURRENT_USER\SOFTWARE\DownloadManager`中`LstCheck`项为`0`
+
 ### 12.21
 
 #### bash脚本sleep时trap不生效