1 files changed, 1 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 65779fe..dabf696 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.1.1
-envlist = py38,pypy,pep8,releasenotes
+envlist = py38,py39,pypy,pep8,releasenotes
 skipsdist = True
 ignore_basepython_conflict = True