diff --git a/api/libs/helper.py b/api/libs/helper.py
index 5ab18d99183af0..91b1d1fe173d6f 100644
--- a/api/libs/helper.py
+++ b/api/libs/helper.py
@@ -10,10 +10,10 @@
 from datetime import datetime
 from hashlib import sha256
 from typing import Any, Optional, Union, cast
+from zoneinfo import available_timezones
 
 from flask import Response, stream_with_context
 from flask_restful import fields
-from zoneinfo import available_timezones
 
 from configs import dify_config
 from core.app.features.rate_limiting.rate_limit import RateLimitGenerator