diff --git a/tox.ini b/tox.ini
index 4af4a83f..72ae1ec7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-minversion = 2.3.1
+minversion = 3.18.0
 envlist = pep8,py{27,36,38}
 skipsdist = True
 skip_missing_interpreters = True
@@ -13,7 +13,7 @@ setenv =
   VIRTUAL_ENV = {envdir}
 usedevelop = True
 install_command = pip install -U {opts} {packages}
-whitelist_externals = *
+allowlist_externals = *
 deps =
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/test-requirements.txt