diff --git a/gas/apps.py b/gas/apps.py
index 5579e5a..98ddd73 100644
--- a/gas/apps.py
+++ b/gas/apps.py
@@ -3,6 +3,7 @@ from django.utils.translation import gettext_lazy as _
 
 
 class GASConfig(AppConfig):
+    default_auto_field = 'django.db.models.AutoField'
     name = 'gas'
     verbose_name = _('GAS')