diff --git a/tox.ini b/tox.ini
index d3e722a0..ff50b9d5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-minversion = 3.1
+minversion = 3.18.0
 envlist = pep8
 skipsdist = True
 ignore_basepython_conflict = True
@@ -22,7 +22,7 @@ commands = stestr run --slowest {posargs}
 commands =
   sh ./tools/misc-sanity-checks.sh
   flake8
-whitelist_externals =
+allowlist_externals =
   sh
 
 [testenv:venv]