diff --git a/setup.cfg b/setup.cfg
index 4ff3c36..6e68c04 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,6 +20,7 @@ classifier =
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
 
 keywords =
     setup
diff --git a/tox.ini b/tox.ini
index d139969..093d085 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.1.1
-envlist = py3,pep8
+envlist = py39,pep8
 skipsdist = True
 ignore_basepython_conflict = True