diff --git a/circle.yml b/circle.yml
index b8bd375..78f490e 100644
--- a/circle.yml
+++ b/circle.yml
@@ -8,7 +8,6 @@ machine:
       - "2.6.8"
       - "3.3.3"
       - "3.4.3"
-      - "nightly"
       - "pypy-2.5.0"
       # not included, for incompatibility
       # - "2.5" # tarvis errs