diff --git a/circle.yml b/circle.yml
index adaf927..8c4bef3 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,7 +1,3 @@
-machine:
-  python:
-    version: 2.7.12 3.5.2
-
 test:
   post:
     - bash <(curl -s https://codecov.io/bash)