From 90e2babcea42f50ec881930c8f404160ec8542a0 Mon Sep 17 00:00:00 2001
From: pyup-bot <github-bot@pyup.io>
Date: Fri, 9 Oct 2020 21:14:40 +0800
Subject: [PATCH] Update tox from 2.9.1 to 3.20.1

---
 requirements_dev.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements_dev.txt b/requirements_dev.txt
index d6ad529..c28be30 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -2,7 +2,7 @@ pip==9.0.1
 wheel==0.30.0
 watchdog==0.8.3
 flake8==3.4.1
-tox==2.9.1
+tox==3.20.1
 coverage==4.4.1
 Sphinx==1.6.3
 PyYAML==3.12