diff --git a/tox.ini b/tox.ini
index 3c56683..bb6edfe 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 envlist =
     # list of supported Django/Python versioons:
-    py{36,37,py3}-dj{22,30,31}
+    py{36,37,38,39,py3}-dj{22,30,31}
     py{38,39}-djmain
     py38-{lint,docs}