diff --git a/aleksis/apps/chronos/migrations/0015_add_managed_by_app_label.py b/aleksis/apps/chronos/migrations/0015_add_managed_by_app_label.py
deleted file mode 100644
index d4906fcd7eefb3fffd36136c75fa8d4feee76cc8..0000000000000000000000000000000000000000
--- a/aleksis/apps/chronos/migrations/0015_add_managed_by_app_label.py
+++ /dev/null
@@ -1,96 +0,0 @@
-# Generated by Django 4.2.3 on 2023-07-27 13:35
-
-import aleksis.core.managers
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('sites', '0002_alter_domain_unique'),
-        ('chronos', '0014_lessonevent'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='absence',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='absencereason',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='break',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='event',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='exam',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='extralesson',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='holiday',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='lesson',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='lessonperiod',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='lessonsubstitution',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='subject',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='supervision',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='supervisionarea',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='supervisionsubstitution',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='timeperiod',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-        migrations.AddField(
-            model_name='validityrange',
-            name='managed_by_app_label',
-            field=models.CharField(blank=True, editable=False, max_length=255, verbose_name='App label of app responsible for managing this instance'),
-        ),
-    ]
diff --git a/aleksis/apps/chronos/migrations/0014_lessonevent.py b/aleksis/apps/chronos/migrations/0016_lessonevent.py
similarity index 97%
rename from aleksis/apps/chronos/migrations/0014_lessonevent.py
rename to aleksis/apps/chronos/migrations/0016_lessonevent.py
index 7b0e0cbac8478b850d847d067591b6885d606d2a..a89abc8906ff6cec9672d0e2a9b46aac39ed80aa 100644
--- a/aleksis/apps/chronos/migrations/0014_lessonevent.py
+++ b/aleksis/apps/chronos/migrations/0016_lessonevent.py
@@ -6,10 +6,9 @@ import django.db.models.deletion
 
 class Migration(migrations.Migration):
     dependencies = [
-        ("sites", "0002_alter_domain_unique"),
         ("core", "0051_calendarevent_and_holiday"),
         ("cursus", "0001_initial"),
-        ("chronos", "0013_move_room_to_core"),
+        ("chronos", "0015_drop_site"),
     ]
 
     operations = [