diff --git a/tox.ini b/tox.ini
index 6805b640..a961c322 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-minversion = 3.1.1
+minversion = 3.18.0
 envlist = py3,pep8,docs,releasenotes,cover,lower-constraints
 skipsdist = True
 ignore_basepython_conflict = True
@@ -30,7 +30,7 @@ commands = sphinx-build -W -b html doc/source doc/build/html
 [testenv:pdf-docs]
 envdir = {toxworkdir}/docs
 deps = {[testenv:docs]deps}
-whitelist_externals =
+allowlist_externals =
   rm
   make
 commands =