diff --git a/cognee/modules/users/authentication/get_api_auth_backend.py b/cognee/modules/users/authentication/get_api_auth_backend.py
index 8a408250c..4c11d3903 100644
--- a/cognee/modules/users/authentication/get_api_auth_backend.py
+++ b/cognee/modules/users/authentication/get_api_auth_backend.py
@@ -16,7 +16,6 @@ def get_api_auth_backend():
 
     def get_jwt_strategy() -> JWTStrategy[models.UP, models.ID]:
         secret = os.getenv("FASTAPI_USERS_JWT_SECRET", "super_secret")
-        # 使用环境变量配置过期时间，默认与 client_auth_backend 保持一致（3600秒）
         lifetime_seconds = int(os.getenv("JWT_LIFETIME_SECONDS", "3600"))
         
         return APIJWTStrategy(secret, lifetime_seconds=lifetime_seconds)
diff --git a/cognee/modules/users/authentication/get_client_auth_backend.py b/cognee/modules/users/authentication/get_client_auth_backend.py
index 3ffe668a8..ba5dad2b3 100644
--- a/cognee/modules/users/authentication/get_client_auth_backend.py
+++ b/cognee/modules/users/authentication/get_client_auth_backend.py
@@ -18,7 +18,6 @@ def get_client_auth_backend():
         from .default.default_jwt_strategy import DefaultJWTStrategy
 
         secret = os.getenv("FASTAPI_USERS_JWT_SECRET", "super_secret")
-        # 使用环境变量配置过期时间，默认 3600 秒（1小时）
         lifetime_seconds = int(os.getenv("JWT_LIFETIME_SECONDS", "3600"))
 
         return DefaultJWTStrategy(secret, lifetime_seconds=lifetime_seconds)