diff --git a/tox.ini b/tox.ini
index c70d79d3..a4fb94ea 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-minversion = 3.1.1
+minversion = 3.18.0
 envlist = py38,py39,pep8
 skipsdist = True
 ignore_basepython_conflict = True
@@ -24,7 +24,7 @@ commands =
     coverage html -d cover
     coverage xml -o cover/coverage.xml
     coverage report -m
-whitelist_externals = rm
+allowlist_externals = rm
 
 [testenv:debug]
 commands = oslo_debug_helper -t barbicanclient/tests {posargs}
@@ -40,15 +40,17 @@ commands = {posargs}
 # the main docs to https://docs.openstack.org/python-barbicanclient
 description = Build main documentation
 basepython = python3
-deps = -r{toxinidir}/doc/requirements.txt
+deps =
+       -r{toxinidir}/requirements.txt
+       -r{toxinidir}/doc/requirements.txt
 commands=
     rm -rf doc/build/html doc/build/doctrees
     sphinx-build -W -b html -d doc/build/doctrees doc/source doc/build/html
-whitelist_externals = rm
+allowlist_externals = rm
 
 [testenv:pdf-docs]
 deps = {[testenv:docs]deps}
-whitelist_externals =
+allowlist_externals =
   make
   rm
 commands =