diff --git a/tox.ini b/tox.ini
index 6ae2b448..006b0d08 100644
--- a/tox.ini
+++ b/tox.ini
@@ -41,6 +41,7 @@ deps = -r{toxinidir}/requirements.txt
 commands = flake8 {posargs} hooks unit_tests tests actions lib
 
 [testenv:venv]
+basepython = python3
 commands = {posargs}
 
 [testenv:func]