diff --git a/tox.ini b/tox.ini
index 8576664..7b84029 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py26, py27, py34, py35, py36, py37, flake8
+envlist = py36, py37, py38, py39, py310, py311, py312, py313, flake8
 skip_missing_interpreters = True
 
 [testenv]