1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 1f88a5335..dd1d0da72 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.4
-envlist = py35, py36, py37, py38, pypy, pylint, benchmark
+envlist = py35, py36, py37, py38, py39, pypy, pylint, benchmark
 skip_missing_interpreters = true
 
 [testenv:pylint]