diff --git a/tox.ini b/tox.ini
index a6e41c8..efb0c90 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,14 +6,15 @@ deps = -e{toxinidir}[test]
 commands = pytest -v {posargs}
 
 [testenv:pep8]
-basepython = python3.6
+basepython = python3.8
 deps = {[testenv]deps}
        flake8
+       pep8
 
 commands = flake8 more setup.py
 
 [testenv:coverage]
-basepython = python3.6
+basepython = python3.8
 deps = {[testenv]deps}
 commands =
     coverage run --source more.transaction -m pytest {posargs}