diff --git a/backend/product/migrations/0004_alter_subcategorymodel_parent.py b/backend/product/migrations/0004_alter_subcategorymodel_parent.py
new file mode 100644
index 0000000..d331c23
--- /dev/null
+++ b/backend/product/migrations/0004_alter_subcategorymodel_parent.py
@@ -0,0 +1,20 @@
+# Generated by Django 5.1.2 on 2025-01-28 18:53
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('product', '0003_subcategorymodel_icon_alter_subcategorymodel_image'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='subcategorymodel',
+            name='parent',
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, related_name='subcategorys', to='product.maincategorymodel', verbose_name='دسته\u200cبندی والد'),
+            preserve_default=False,
+        ),
+    ]
diff --git a/backend/product/models.py b/backend/product/models.py
index cabc85f..b0a9dd6 100644
--- a/backend/product/models.py
+++ b/backend/product/models.py
@@ -32,7 +32,7 @@ class SubCategoryModel(models.Model):
     icon = models.ImageField(upload_to='category_model/',verbose_name='آیکون', blank=True, null=True)
     meta_title = models.CharField(max_length=60, verbose_name="عنوان متا", help_text="عنوان متا برای SEO", blank=True, null=True)
     meta_description = models.TextField(max_length=160, verbose_name="توضیحات متا", help_text="توضیحات متا برای SEO", blank=True, null=True)
-    parent = models.ForeignKey(MainCategoryModel, on_delete=models.CASCADE, related_name='subcategorys', null=True, blank=True, verbose_name='دسته‌بندی والد')
+    parent = models.ForeignKey(MainCategoryModel, on_delete=models.CASCADE, related_name='subcategorys', verbose_name='دسته‌بندی والد')
     show = models.BooleanField(default=False, verbose_name='نمایش در خانه')
     
     class Meta: