diff --git a/tox.ini b/tox.ini
index 479c6d9..f7f74ef 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,13 +1,12 @@
 [tox]
-envlist = py36, py37, py38, flake8
+envlist = py38, py39, flake8
 requires = pip >= 20.0
 opts = -v
 
 [travis]
 python =
+    3.9: py39
     3.8: py38
-    3.7: py37
-    3.6: py36
 
 [testenv:flake8]
 basepython = python