diff --git a/archivebox/core/settings.py b/archivebox/core/settings.py
index 8334c39b..6a52641d 100644
--- a/archivebox/core/settings.py
+++ b/archivebox/core/settings.py
@@ -268,6 +268,7 @@ AUTH_PASSWORD_VALIDATORS = [
     {'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator'},
 ]
 
+# WIP: commented out because broken by Django 3.1.2 -> 4.0 migration
 # DEFAULT_AUTO_FIELD = 'django.db.models.UUIDField'
 
 ################################################################################