run tox on different python patch versions

in short: Is there a way to have tox cycle on patch versions of python ?

long: I want the tests to be run on 2.7.7, 2.7.8, and so on, basically I'm staging on 2.7.6 and want to see if I can get rid of this warning

http://ift.tt/193fQCj

before going into production

( of course I've already tested it "by hand" with pyenv, setting 2.7.x as global building a virtualenv and testing into it, but it would be nice to have continuous integration run every time all the possible combinations )