diff --git a/.travis.yml b/.travis.yml
index 759d0425..3d24c9e5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,6 +18,9 @@ os:
   - osx
   - linux
 
+# Build on El Capitan
+osx_image: xcode7.3
+
 services:
   - docker