diff --git a/circle.yml b/circle.yml
index 4fcb3457..a8bbed58 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,6 +1,6 @@
 machine:
     python:
-        version: 2.7.12
+        version: 2.7.10
     environment:
         COMPILE: --compile