diff --git a/backend/product/migrations/0069_alter_productvariant_currency.py b/backend/product/migrations/0069_alter_productvariant_currency.py
new file mode 100644
index 0000000..97295b2
--- /dev/null
+++ b/backend/product/migrations/0069_alter_productvariant_currency.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.1.2 on 2026-02-01 07:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('product', '0068_alter_productmodel_image_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='productvariant',
+            name='currency',
+            field=models.CharField(choices=[('dollor', 'با نوسان دلاری'), ('toman', 'بدون نوسان')], default='toman', max_length=20, verbose_name='نوع نوسان'),
+        ),
+    ]
diff --git a/backend/product/models.py b/backend/product/models.py
index 149f3d4..33fc412 100644
--- a/backend/product/models.py
+++ b/backend/product/models.py
@@ -384,7 +384,7 @@ class ProductVariant(DirtyFieldsMixin, models.Model):
         InPackItems, blank=True, verbose_name='ایتم های داخل پک')
     sell = models.IntegerField(default=0, verbose_name='فروش')
     currency = models.CharField(
-        verbose_name='نوع نوسان', max_length=20, choices=currency_type, default='dollor')
+        verbose_name='نوع نوسان', max_length=20, choices=currency_type, default='toman')
     price_in_dollor = models.DecimalField(
         max_digits=15, decimal_places=8, blank=True, null=True, 
         verbose_name='قیمت به دلار', help_text='قیمت محصول به دلار (محاسبه خودکار)')