diff --git a/nummi/main/apps.py b/nummi/main/apps.py
index 34f1451..de0edc1 100644
--- a/nummi/main/apps.py
+++ b/nummi/main/apps.py
@@ -2,5 +2,4 @@ from django.apps import AppConfig
 
 
 class MainConfig(AppConfig):
-    default_auto_field = "django.db.models.BigAutoField"
     name = "main"