diff --git a/.travis.yml b/.travis.yml
index cee184deb..f2bcc2d9d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -36,6 +36,7 @@ matrix:
       language: android
       jdk: oraclejdk8
     - os: osx
+      osx_image: xcode9.4
       env: BUILD_SYSTEM=gradle
       language: java
     - os: linux