Use newer version of os-x compiler.

There is a warning that xcode6.4 is going away.
apache · Feb 22, 2019 · a48cd9e99ca9ff2c660e7fdcd9ce23602e823769 · a48cd9e
1 parent 8b8bdda
commit a48cd9e99ca9ff2c660e7fdcd9ce23602e823769
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,7 @@ python: 3.5
 sudo: required
 dist: trusty
 services: docker
-osx_image: xcode6.4
+osx_image: xcode8
 
 env:
   global: