diff --git a/tox.ini b/tox.ini
index 850ad87..a70437d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py34,py37,pypy
+envlist = py26,py27,py34,py37,pypy
 [testenv]
 changedir = .tox
 deps = -rrequirements-test.txt