diff --git a/jcloud/api/aliyun_server_light.py b/jcloud/api/aliyun_server_light.py
index e765647..f7ab0db 100644
--- a/jcloud/api/aliyun_server_light.py
+++ b/jcloud/api/aliyun_server_light.py
@@ -183,15 +183,14 @@ class AliyunLightServerManager:
             jingrow.log_error("升级实例失败", f"升级实例 {instance_id} 时发生错误: {str(e)}")
             return {'success': False, 'error': str(e), 'message': '实例升级失败'}
     
-    def renew_instance(self, instance_id, period=1, period_unit='Month', region_id='cn-shanghai'):
+    def renew_instance(self, instance_id, period=1, region_id='cn-shanghai'):
         """续费实例"""
         client = self._get_client(region_id)
         try:
             request = swas__open20200601_models.RenewInstanceRequest(
                 region_id=region_id,
                 instance_id=instance_id,
-                period=period,
-                period_unit=period_unit
+                period=period
             )
             runtime = util_models.RuntimeOptions()
             response = client.renew_instance_with_options(request, runtime)
@@ -527,10 +526,10 @@ def upgrade_aliyun_instance(instance_id, plan_id, region_id='cn-shanghai'):
     return manager.upgrade_instance(instance_id, plan_id, region_id)
 
 @jingrow.whitelist()
-def renew_aliyun_instance(instance_id, period=1, period_unit='Month', region_id='cn-shanghai'):
+def renew_aliyun_instance(instance_id, period=1, region_id='cn-shanghai'):
     """续费实例"""
     manager = _get_manager()
-    return manager.renew_instance(instance_id, period, period_unit, region_id)
+    return manager.renew_instance(instance_id, period, region_id)
 
 @jingrow.whitelist()
 def reset_aliyun_instance_system(instance_id, image_id=None, password=None, region_id='cn-shanghai'):