diff --git a/tox.ini b/tox.ini
index 0916edb..d85330a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,10 +1,8 @@
 [tox]
 minversion = 4.0
 envlist = py3,py311,py312,pep8,docs,pylint,cover
-ignore_basepython_conflict = True
 
 [testenv]
-basepython = {env:TOX_PYTHON:python3}
 usedevelop = True
 deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
        -r{toxinidir}/requirements.txt