diff --git a/tox.ini b/tox.ini
index e90d0c59..790d0af0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -49,7 +49,9 @@ show-source = True
 exclude = .git,.venv,.tox,dist,doc,openstack,*egg
 
 [testenv:npm-test]
+basepython = python3
 commands = npm test
 
 [testenv:npm-lint]
+basepython = python3
 commands = npm run lint --silent