diff --git a/auto_pt/views.py b/auto_pt/views.py
index d577d70..a382803 100644
--- a/auto_pt/views.py
+++ b/auto_pt/views.py
@@ -369,8 +369,9 @@ def do_update(request):
     try:
         logger.info('开始更新')
         bt_school = Site.objects.filter(url=' http://47.242.110.63/').first()
-        bt_school.url = 'https://pt.btschool.club/'
-        bt_school.save()
+        if not bt_school:
+            bt_school.url = 'https://pt.btschool.club/'
+            bt_school.save()
         pt_site_site_mtime = os.stat('pt_site_site.json').st_mtime
         requirements_mtime = os.stat('requirements.txt').st_mtime
         update_commands = {