diff --git a/backend/app/routers/information.py b/backend/app/routers/information.py
index 2fa5e17..b129c5d 100644
--- a/backend/app/routers/information.py
+++ b/backend/app/routers/information.py
@@ -86,7 +86,7 @@ def get_information_list(
     status: str = Query("active", description="状态: active/closed/expired"),
     page: int = Query(1, ge=1),
     page_size: int = Query(20, ge=1, le=100),
-    current_user: User = Depends(get_current_user),
+    current_user: Optional[User] = Depends(get_current_user),
     db: Session = Depends(get_db)
 ):
     """获取资讯列表（公开，无需登录）"""