I know that from Django 1.7 I don\'t need to use South or any other migration system, so I am just using simple command python manage.py makemigrations
python manage.py makemigrations
In models.py
class UserProfile(models.Model): user = models.OneToOneField(User) website = models.URLField(blank=True) new_field = models.CharField(max_length=140, default="some_value")
You need to add some values as default.