diff --git a/.travis.yml b/.travis.yml
index 4dfca07eaf..0862e4ff33 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,10 @@
 sudo: false
 language: ruby
 cache: bundler
+before_install:
+  # bundler installation needed for jruby-head
+  # https://github.com/travis-ci/travis-ci/issues/5861
+  - gem install bundler
 script: "TESTOPTS=-v bundle exec rake test"
 rvm:
   - 2.2.6