diff --git a/.travis.yml b/.travis.yml
index 6c01e57..071a4ab 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -43,6 +43,10 @@ matrix:
         - libmysqlclient-dev
         - libhiredis-dev
   - os: osx
+    osx_image: xcode9
+   - os: osx
+    osx_image: xcode8
+   - os: osx
     osx_image: xcode7
   - os: osx
     osx_image: xcode6