diff --git a/.appveyor.yml b/.appveyor.yml
index 45890ae..d697df9 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -5,4 +5,4 @@ install:
 build: off
 
 test_script:
-  - python -m tox -e py27,py33,py34,py35,dogfood
+  - python -m tox -e py27,py34,py35,dogfood