1 files changed, 2 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index 0400131..1c032a9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,12 +5,14 @@ envlist =
     py36,
     py37,
     py38,
+    py39,
 
 [testenv]
 basepython =
     py36: python3.6
     py37: python3.7
     py38: python3.8
+    py39: python3.9
 commands =
     pip install -e .
     # actual flake8 test