diff --git a/djangocms_url_manager/migrations/0001_initial.py b/djangocms_url_manager/migrations/0001_initial.py
index 09cc1f9..2e9b43e 100644
--- a/djangocms_url_manager/migrations/0001_initial.py
+++ b/djangocms_url_manager/migrations/0001_initial.py
@@ -14,6 +14,7 @@ class Migration(migrations.Migration):
     dependencies = [
         ("sites", "0002_alter_domain_unique"),
         ("contenttypes", "0002_remove_content_type_name"),
+        ('cms', '0034_remove_pagecontent_placeholders'),
     ]
 
     operations = [
diff --git a/djangocms_url_manager/migrations/0006_auto_20210513_1359.py b/djangocms_url_manager/migrations/0006_auto_20210513_1359.py
new file mode 100644
index 0000000..2c32f39
--- /dev/null
+++ b/djangocms_url_manager/migrations/0006_auto_20210513_1359.py
@@ -0,0 +1,19 @@
+# Generated by Django 2.2.20 on 2021-05-13 13:59
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('djangocms_url_manager', '0005_auto_20200923_0843'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='url',
+            name='content_type',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.PROTECT, related_name='djangocms_url_manager_url_content_type', to='contenttypes.ContentType'),
+        ),
+    ]