diff --git a/tox.ini b/tox.ini
index 05ecfafb..ed7a3cd0 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
@@ -32,7 +32,7 @@ commands = {posargs}
 setenv =
   {[testenv]setenv}
   PYTHON=coverage run --source octavia_tempest_plugin --parallel-mode
-whitelist_externals =
+allowlist_externals =
   find
 commands =
   find octavia_tempest_plugin -type f -name "*.pyc" -delete
@@ -47,14 +47,14 @@ deps =
     -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
     -r{toxinidir}/test-requirements.txt
     -r{toxinidir}/doc/requirements.txt
-whitelist_externals = rm
+allowlist_externals = rm
 commands =
   rm -rf doc/build
   sphinx-build -W -b html doc/source doc/build/html
 
 [testenv:pdf-docs]
 deps = {[testenv:docs]deps}
-whitelist_externals =
+allowlist_externals =
   make
   rm
 commands =
@@ -104,7 +104,7 @@ paths =
   ./octavia_tempest_plugin/hacking
 
 [testenv:genconfig]
-whitelist_externals = mkdir
+allowlist_externals = mkdir
 commands =
          mkdir -p etc
          oslo-config-generator --output-file etc/octavia.tempest.conf.sample \
@@ -113,6 +113,6 @@ commands =
 [testenv:requirements]
 deps =
   -egit+https://opendev.org/openstack/requirements#egg=openstack-requirements
-whitelist_externals = sh
+allowlist_externals = sh
 commands =
     sh -c '{envdir}/src/openstack-requirements/playbooks/files/project-requirements-change.py --req {envdir}/src/openstack-requirements --local {toxinidir} master'