diff --git a/src/tox.ini b/src/tox.ini
index 98e44e063..ff47136be 100644
--- a/src/tox.ini
+++ b/src/tox.ini
@@ -5,7 +5,7 @@
 
 [tox]
 skipsdist = True
-envlist = py34, py35, py36, pycodestyle, doc
+envlist = py34, py35, py36, py37, pycodestyle, doc
 
 [testenv]
 commands = pytest