diff --git a/chzzk/migrations/0003_alter_chzzkcampaign_account_link_url_and_more.py b/chzzk/migrations/0003_alter_chzzkcampaign_account_link_url_and_more.py
new file mode 100644
index 0000000..5201cdf
--- /dev/null
+++ b/chzzk/migrations/0003_alter_chzzkcampaign_account_link_url_and_more.py
@@ -0,0 +1,40 @@
+# Generated by Django 6.0.3 on 2026-04-01 02:21
+
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    """Alter URL fields to allow blank and increase max_length."""
+
+    dependencies = [
+        ("chzzk", "0002_alter_chzzkcampaign_campaign_reward_type_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="chzzkcampaign",
+            name="account_link_url",
+            field=models.URLField(blank=True, max_length=2000),
+        ),
+        migrations.AlterField(
+            model_name="chzzkcampaign",
+            name="image_url",
+            field=models.URLField(blank=True, max_length=2000),
+        ),
+        migrations.AlterField(
+            model_name="chzzkcampaign",
+            name="mobile_link_url",
+            field=models.URLField(blank=True, max_length=2000),
+        ),
+        migrations.AlterField(
+            model_name="chzzkcampaign",
+            name="pc_link_url",
+            field=models.URLField(blank=True, max_length=2000),
+        ),
+        migrations.AlterField(
+            model_name="chzzkreward",
+            name="image_url",
+            field=models.URLField(blank=True, max_length=2000),
+        ),
+    ]