how to change django version

I have Django(3.1) installed in my pc. I want to change Django(3.1)
to Django(3.0).

See the documentation for the pip command to see how you can specify how to install the specific version of a package.

Note: Django does not support downgrading versions of a project. If you’ve been building / running a project under Django 3.1, it might not work if you downgrade to 3.0.

Ken

No, I have project to make in Django 3.0 so, i want to downgrade the version