diff --git a/archivebox/core/admin.py b/archivebox/core/admin.py
index ce4612a7..50319804 100644
--- a/archivebox/core/admin.py
+++ b/archivebox/core/admin.py
@@ -48,6 +48,7 @@ class TagInline(admin.TabularInline):
 from django.contrib.admin.helpers import ActionForm
 from django.contrib.admin.widgets import AutocompleteSelectMultiple
 
+# WIP: commented out because broken by Django 3.1.2 -> 4.0 migration
 # class AutocompleteTags:
 #     model = Tag
 #     search_fields = ['name']