diff --git a/src/agenda_culturel/migrations/0001_squashed_0150_alter_event_local_image.py b/src/agenda_culturel/migrations/0001_squashed_0150_alter_event_local_image.py
index b869fa5..d71f97e 100644
--- a/src/agenda_culturel/migrations/0001_squashed_0150_alter_event_local_image.py
+++ b/src/agenda_culturel/migrations/0001_squashed_0150_alter_event_local_image.py
@@ -223,7 +223,7 @@ class Migration(migrations.Migration):
                 ('browsable_url', models.URLField(blank=True, help_text='URL of the corresponding document that will be shown to visitors.', max_length=1024, null=True, verbose_name='Browsable url')),
                 ('defaultLocation', models.CharField(blank=True, help_text='Address for each imported event', max_length=512, null=True, verbose_name='Location')),
                 ('defaultTags', django_better_admin_arrayfield.models.fields.ArrayField(base_field=models.CharField(max_length=64), blank=True, help_text='A list of tags that describe each imported event.', null=True, size=None, verbose_name='Tags for each imported event')),
-                ('defaultCategory', models.ForeignKey(blank=True, default=None, help_text='Category of each imported event', on_delete=django.db.models.deletion.SET_DEFAULT, to='agenda_culturel.category', verbose_name='Category')),
+                ('defaultCategory', models.ForeignKey(blank=True, default=None, help_text='Category of each imported event', null=True, on_delete=django.db.models.deletion.SET_DEFAULT, to='agenda_culturel.category', verbose_name='Category')),
                 ('downloader', models.CharField(choices=[('simple', 'simple'), ('chromium headless', 'Headless Chromium')], default='simple', max_length=20, verbose_name='Downloader')),
                 ('defaultPublished', models.BooleanField(default=True, help_text='Status of each imported event (published or draft)', verbose_name='Published')),
                 ('name', models.CharField(default='', help_text='Recurrent import name', max_length=512, verbose_name='Name')),
diff --git a/src/agenda_culturel/migrations/0152_alter_recurrentimport_defaultcategory.py b/src/agenda_culturel/migrations/0152_alter_recurrentimport_defaultcategory.py
deleted file mode 100644
index 3e9290a..0000000
--- a/src/agenda_culturel/migrations/0152_alter_recurrentimport_defaultcategory.py
+++ /dev/null
@@ -1,19 +0,0 @@
-# Generated by Django 4.2.19 on 2025-03-02 12:58
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('agenda_culturel', '0151_referencelocation_slug'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='recurrentimport',
-            name='defaultCategory',
-            field=models.ForeignKey(blank=True, default=None, help_text='Category of each imported event', null=True, on_delete=django.db.models.deletion.SET_DEFAULT, to='agenda_culturel.category', verbose_name='Category'),
-        ),
-    ]