.travis.yml in puppet-resource_api-1.8.6 vs .travis.yml in puppet-resource_api-1.8.7

@@ -14,16 +14,18 @@
 matrix:
   include:
     - rvm: 2.4.3
       env: PUPPET_GEM_VERSION='~> 5' SIMPLECOV=yes # 5.5
     - env: RVM="jruby-1.7.26" PUPPET_GEM_VERSION='~> 5' JRUBY_OPTS="--debug" SIMPLECOV=yes
+      dist: trusty
       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 && 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"
+      dist: trusty
       before_cache: pushd ~/.rvm && rm -rf archives rubies/ruby-2.2.7 rubies/ruby-2.3.4 && popd
       cache:
         bundler: false
         directories: ~/.rvm
       before_install: rvm use jruby-9.1.9.0 --install --binary --fuzzy