diff --git a/tox.ini b/tox.ini
index 45fac50..e948b43 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,6 @@ minversion = 1.8
 skipsdist = True
 
 [testenv]
-basepython = /usr/bin/python
 setenv = VIRTUAL_ENV={envdir}
 usedevelop = True
 install_command = pip install -U {opts} {packages}
@@ -16,11 +15,13 @@ whitelist_externals = bash
                       find
 
 [testenv:pep8]
+basepython = python3
 commands =
   flake8
   python setup.py check --restructuredtext --strict
 
 [testenv:venv]
+basepython = python3
 commands = {posargs}
 
 [flake8]