diff --git a/notifications/apps.py b/notifications/apps.py
index 2a1a387..1480c3a 100644
--- a/notifications/apps.py
+++ b/notifications/apps.py
@@ -5,6 +5,7 @@ from django.apps import AppConfig
 
 class Config(AppConfig):
     name = "notifications"
+    default_auto_field = 'django.db.models.AutoField'
 
     def ready(self):
         super(Config, self).ready()