From 51d6e6e77442cc837279863cfc893d024c08ca8d Mon Sep 17 00:00:00 2001
From: David Smith <smithdc@gmail.com>
Date: Sat, 24 Oct 2020 21:17:46 +0100
Subject: [PATCH] Refs #31670 -- Used allowlist_externals in tox.ini.

---
 tox.ini | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tox.ini b/tox.ini
index 1b89a965f1f..0332fb9f76d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,6 +4,7 @@
 # then run "tox" from this directory.
 
 [tox]
+minversion = 3.18
 skipsdist = true
 envlist =
     py3
@@ -40,7 +41,7 @@ commands = flake8 .
 [testenv:docs]
 basepython = python3
 usedevelop = false
-whitelist_externals =
+allowlist_externals =
     make
 deps =
     Sphinx