diff --git a/brutaldon/settings.py b/brutaldon/settings.py
index f7f80c2..5fe9ea0 100644
--- a/brutaldon/settings.py
+++ b/brutaldon/settings.py
@@ -211,5 +211,8 @@ def CHECK_INSTANCE_URL(url, redirect):
         return redirect(RICKROLL_URL)
 
 
+# See https://dev.to/weplayinternet/upgrading-to-django-3-2-and-fixing-defaultautofield-warnings-518n
+DEFAULT_AUTO_FIELD='django.db.models.AutoField'
+
 # Version number displayed on about page
 BRUTALDON_VERSION = "2.15.0"