.travis.yml in puppet-resource_api-1.8.3 vs .travis.yml in puppet-resource_api-1.8.4

@@ -18,10 +18,10 @@
     - env: RVM="jruby-1.7.26" PUPPET_GEM_VERSION='~> 5' JRUBY_OPTS="--debug" COVERAGE=yes
       before_cache: pushd ~/.rvm && rm -rf archives rubies/ruby-2.2.7 rubies/ruby-2.3.4 && popd
       cache:
         bundler: true
         directories: ~/.rvm
-      before_install: rvm use jruby-1.7.26 --install --binary --fuzzy
+      before_install: rvm use jruby-1.7.26 --install --binary --fuzzy && gem install bundler -v '~> 1.7.0'
     # disable coverage on jruby9k as this confuses codecov
     - env: RVM="jruby-9.1.9.0" PUPPET_GEM_VERSION='~> 5' JRUBY_OPTS="--debug"
       before_cache: pushd ~/.rvm && rm -rf archives rubies/ruby-2.2.7 rubies/ruby-2.3.4 && popd
       cache:
         bundler: false