From bbc9b366a28cef2f4384c75ad18ee8f1687f9cc9 Mon Sep 17 00:00:00 2001
From: Charles Tapley Hoyt <cthoyt@gmail.com>
Date: Tue, 14 Dec 2021 12:40:35 -0500
Subject: [PATCH] Add major version constraint on `tox`

---
 .github/workflows/qa.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/qa.yml b/.github/workflows/qa.yml
index 09e1aaf81..5de587386 100644
--- a/.github/workflows/qa.yml
+++ b/.github/workflows/qa.yml
@@ -18,6 +18,6 @@ jobs:
       - name: Install dependencies
         run: |
           pip install --upgrade pip setuptools wheel
-          pip install tox
+          pip install "tox<4.0.0"
       - name: Check code quality with flake8
         run: tox -e flake8