diff --git a/tox.ini b/tox.ini
index 2f35209..4868be7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py26, py27, py31, py32, py33, py34, pypy
+envlist = py26, py27, py32, py33, py34, pypy
 
 [base]
 deps =