diff --git a/notifications/apps.py b/notifications/apps.py
index 346d5a0..71f11a8 100644
--- a/notifications/apps.py
+++ b/notifications/apps.py
@@ -7,6 +7,7 @@ from django.utils.translation import gettext_lazy as _
 class Config(AppConfig):
     name = "notifications"
     verbose_name = _("Notifications")
+    default_auto_field = 'django.db.models.AutoField'
 
     def ready(self):
         super(Config, self).ready()