diff --git a/docs/dev-log.md b/docs/dev-log.md
index 3a6a07f..122a063 100644
--- a/docs/dev-log.md
+++ b/docs/dev-log.md
@@ -1,3 +1,9 @@
+# 2024-07-22 logger 自带前缀，不需要额外加了
+
+```
+21:42:39.299 [info] File written successfully
+```
+
 ## FIXME: download youtube big video
 
 ![error log: download youtube big video](./error_log_download_youtube_big_video.png)
diff --git a/docs/todos.md b/docs/todos.md
index 5f8f15d..c36e74c 100644
--- a/docs/todos.md
+++ b/docs/todos.md
@@ -6,12 +6,6 @@ DevOps
 
 small refactor:
 
-- [x] logger 自带前缀，不需要额外加了
-
-```
-21:42:39.299 [info] File written successfully
-```
-
 features
 
 - [ ] list all ins response