diff --git a/src/pretix/base/migrations/0268_remove_subevent_items_remove_subevent_variations_and_more.py b/src/pretix/base/migrations/0268_remove_subevent_items_remove_subevent_variations_and_more.py
new file mode 100644
index 0000000000..3aaf43ac1d
--- /dev/null
+++ b/src/pretix/base/migrations/0268_remove_subevent_items_remove_subevent_variations_and_more.py
@@ -0,0 +1,31 @@
+# Generated by Django 4.2.8 on 2024-07-01 09:26
+
+from django.db import migrations, models
+import pretix.base.models.orders
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pretixbase", "0267_remove_old_sales_channels"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="subevent",
+            name="items",
+        ),
+        migrations.RemoveField(
+            model_name="subevent",
+            name="variations",
+        ),
+        migrations.AlterField(
+            model_name="order",
+            name="internal_secret",
+            field=models.CharField(
+                default=pretix.base.models.orders.generate_secret,
+                max_length=32,
+                null=True,
+            ),
+        ),
+    ]