1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 61081a3744..1b89a965f1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,7 +22,7 @@ passenv = DJANGO_SETTINGS_MODULE PYTHONPATH HOME DISPLAY OBJC_DISABLE_INITIALIZE
 setenv =
     PYTHONDONTWRITEBYTECODE=1
 deps =
-    py{3,36,37,38}: -rtests/requirements/py3.txt
+    py{3,36,37,38,39}: -rtests/requirements/py3.txt
     postgres: -rtests/requirements/postgres.txt
     mysql: -rtests/requirements/mysql.txt
     oracle: -rtests/requirements/oracle.txt