diff --git a/.travis.yml b/.travis.yml
index 1e6c82a1d..d8511ee04 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ python: 3.5
 sudo: required
 dist: trusty
 services: docker
-osx_image: xcode8
+osx_image: xcode9.2
 
 matrix:
   exclude:
diff --git a/multibuild b/multibuild
index 07480be3e..cba6a4228 160000
--- a/multibuild
+++ b/multibuild
@@ -1 +1 @@
-Subproject commit 07480be3e0b3490495cb8a9629e55be54c3adac3
+Subproject commit cba6a4228b28922799fde42e8a19833b81016816