diff --git a/tox.ini b/tox.ini
index c902352..4c584a6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 envlist =
     py27-{17,18,19,110,111},
-    py34-{17,18,19,110,111,20,master},
+    py34-{17,18,19,110,111,20},
     py35-{18,19,110,111,20,master},
     py36-{18,19,110,111,20,master},
 [testenv]