diff --git a/astrbot/core/cron/manager.py b/astrbot/core/cron/manager.py
index ca5554546..9f3116f65 100644
--- a/astrbot/core/cron/manager.py
+++ b/astrbot/core/cron/manager.py
@@ -1,5 +1,4 @@
 import asyncio
-import copy
 import json
 from collections.abc import Awaitable, Callable
 from datetime import datetime, timezone