1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini

index 6dcc439a40..6a507d3012 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = packaging, py35, py36, py37, py38, check_codestyle, check_isort
+envlist = packaging, py35, py36, py37, py38, py39, check_codestyle, check_isort
 
 [base]
 extras = test