diff --git a/README.md b/README.md
index e1ddac4..0ef7b67 100644
--- a/README.md
+++ b/README.md
@@ -1 +1 @@
-Demo application used by [django-migration-fixer](https://github.com/tj-django/django-migration-fixer)
+Demo application used by [django-migration-fixer](https://github.com/tj-django/django-migration-fixer).
diff --git a/migrations/0002_alter_testmodel_age.py b/migrations/0002_alter_testmodel_age.py
new file mode 100644
index 0000000..599373a
--- /dev/null
+++ b/migrations/0002_alter_testmodel_age.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.4 on 2021-07-03 05:38
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("demo", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="testmodel",
+            name="age",
+            field=models.PositiveIntegerField(default=500),
+        ),
+    ]
diff --git a/models.py b/models.py
index 5eced76..2973db3 100644
--- a/models.py
+++ b/models.py
@@ -7,7 +7,7 @@ class TestModel(models.Model):
     created_at = models.DateTimeField(auto_now_add=True)
     update_at = models.DateTimeField(auto_now=True)
     name = models.CharField(max_length=500)
-    age = models.PositiveIntegerField(default=50)
+    age = models.PositiveIntegerField(default=500)
 
     if django.VERSION < (2, 1):
         active = models.NullBooleanField()