diff --git a/tox.ini b/tox.ini
index 69ecb3a..7cabd39 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,6 +23,7 @@ commands =
     python setup.py build_sphinx
 
 [testenv:doc8]
+basepython = python3
 deps =
     -r{toxinidir}/requirements.txt
     doc8