diff --git a/app/plugins/sitestatistic/__init__.py b/app/plugins/sitestatistic/__init__.py
index 88b2c0ff..17295ed9 100644
--- a/app/plugins/sitestatistic/__init__.py
+++ b/app/plugins/sitestatistic/__init__.py
@@ -986,7 +986,7 @@ class SiteStatistic(_PluginBase):
                 return
 
             # 并发刷新
-            with ThreadPool(min(len(refresh_sites), self._queue_cnt)) as p:
+            with ThreadPool(min(len(refresh_sites), int(self._queue_cnt or 5))) as p:
                 p.map(self.__refresh_site_data, refresh_sites)
 
             # 获取今天的日期