diff --git a/tox.ini b/tox.ini
index 519f8ea968..7792f5114b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-minversion = 3.2.0
+minversion = 3.18.0
 envlist = py39,pep8,api-ref,docs,genconfig,genpolicy,releasenotes,protection
 ignore_basepython_conflict = true
 
@@ -14,7 +14,7 @@ deps =
 commands =
   find keystone -type f -name "*.pyc" -delete
   stestr run {posargs}
-whitelist_externals =
+allowlist_externals =
   bash
   find
 passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY PBR_VERSION
@@ -139,7 +139,7 @@ commands=
 [testenv:pdf-docs]
 envdir = {toxworkdir}/docs
 deps = {[testenv:docs]deps}
-whitelist_externals =
+allowlist_externals =
   make
   mkdir
   rm