Can I make virtualenv (and/or uwsgi) use python 3.6 instead of 2.7?

I'm figuring out to setup uwsgi and it's working so far but it's running 2.7.1; I want it to run 3.6 (which is already installed) instead.

When I run virtualenv to make a new environment to run uwsgi in, the default python --version is still python 2.7.15.

There's gotta be a way to change that right?

I'm in ubuntu 18.04.2 thanks.