diff --git a/.travis.yml b/.travis.yml
index d8511ee04..3f203ab76 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ python: 3.5
 sudo: required
 dist: trusty
 services: docker
-osx_image: xcode9.2
+osx_image: xcode6.4
 
 matrix:
   exclude: