Update .travis.yml
diff --git a/.travis.yml b/.travis.yml
index 0737b44..fe05e44 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -230,6 +230,7 @@
     - os: linux
       dist: trusty
       sudo: required
+      language: java
       env: BUILD_SYSTEM=bazel
       addons:
         apt: