diff --git a/video-gen-api/app/services/user_oauth_service.py b/video-gen-api/app/services/user_oauth_service.py
index de8f7452..b85fcd51 100644
--- a/video-gen-api/app/services/user_oauth_service.py
+++ b/video-gen-api/app/services/user_oauth_service.py
@@ -1,5 +1,5 @@
 import random
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
 
 import httpx
 from sqlalchemy import select, func
@@ -136,8 +136,8 @@ async def get_juliang_token(app_id: str, secret: str, code: str, open_type: int,
         data = data.get("data", {})
         access_token = data.get("access_token", "")
         refresh_token = data.get("refresh_token", "")
-        expires_in = datetime.now() + timedelta(seconds=data.get("expires_in", 0)) 
-        refresh_token_expires_in = datetime.now() + timedelta(seconds=data.get("refresh_token_expires_in", 0))
+        expires_in = datetime.now(timezone.utc) + timedelta(seconds=data.get("expires_in", 0)) 
+        refresh_token_expires_in = datetime.now(timezone.utc) + timedelta(seconds=data.get("refresh_token_expires_in", 0))
         #2.获取已授权角色账户，一个授权可能有多个角色账户
         url = "https://api.oceanengine.com/open_api/oauth2/advertiser/get/"
         response = await client.get(
@@ -222,7 +222,7 @@ async def get_juliang_token(app_id: str, secret: str, code: str, open_type: int,
 
             # 1. 软删除已消失的账户
             for account_id in old_account_ids - new_account_ids:
-                existing_accounts[account_id].deleted_at = datetime.now()
+                existing_accounts[account_id].deleted_at = datetime.now(timezone.utc)
 
             # 2. 更新或新增账户
             for account in account_list:
diff --git a/video-gen-api/app/tasks/token_refresh_task.py b/video-gen-api/app/tasks/token_refresh_task.py
index 11e86bc8..37a9830e 100644
--- a/video-gen-api/app/tasks/token_refresh_task.py
+++ b/video-gen-api/app/tasks/token_refresh_task.py
@@ -93,8 +93,8 @@ async def refresh_juliang_token(oauth: UserOAuth, app: UserOAuthApp, db: AsyncSe
             data = data.get("data", {})
             new_access_token = data.get("access_token", "")
             new_refresh_token = data.get("refresh_token", "")
-            expires_in = datetime.now(tz=oauth.access_token_expired.tzinfo) + timedelta(seconds=data.get("expires_in", 0))
-            refresh_token_expires_in = datetime.now(tz=oauth.refresh_token_expired.tzinfo) + timedelta(seconds=data.get("refresh_token_expires_in", 0))
+            expires_in = datetime.now(timezone.utc) + timedelta(seconds=data.get("expires_in", 0))
+            refresh_token_expires_in = datetime.now(timezone.utc) + timedelta(seconds=data.get("refresh_token_expires_in", 0))
 
             from sqlalchemy import update
             
diff --git a/video-gen-api/app/utils/douyinRequest.py b/video-gen-api/app/utils/douyinRequest.py
index 69121af6..a817d513 100644
--- a/video-gen-api/app/utils/douyinRequest.py
+++ b/video-gen-api/app/utils/douyinRequest.py
@@ -51,7 +51,7 @@ class DouyinRequest:
                 token = cache.get("token")
                 expired_at_str = cache.get("expired_at")
                 if token and expired_at_str:
-                    expired_at = datetime.fromisoformat(expired_at_str)
+                    expired_at = datetime.fromisoformat(expired_at_str).replace(tzinfo=timezone.utc)
                     if expired_at > datetime.now(timezone.utc):
                         return token
         except Exception as e: