.travis.yml in isolator-0.6.0 vs .travis.yml in isolator-0.6.1

@@ -5,22 +5,18 @@
   - 2.5.3
 
 notifications:
   email: false
 
-before_install:
-  - (ruby -v | grep '2.2.2') || gem update --system
-  - gem install bundler -v '< 2'
-
 matrix:
   fast_finish: true
   include:
     - rvm: ruby-head
       gemfile: gemfiles/railsmaster.gemfile
-    - rvm: jruby-9.1.0.0
+    - rvm: jruby-9.2.8.0
       gemfile: gemfiles/jruby.gemfile
-    - rvm: 2.6.1
+    - rvm: 2.6.2
       gemfile: gemfiles/rails6.gemfile
     - rvm: 2.5.0
       gemfile: Gemfile
     - rvm: 2.4.3
       gemfile: Gemfile
@@ -29,7 +25,7 @@
     - rvm: 2.2.2
       gemfile: gemfiles/ruby_2.2.2.gemfile
   allow_failures:
     - rvm: ruby-head
       gemfile: gemfiles/railsmaster.gemfile
-    - rvm: jruby-9.1.0.0
+    - rvm: jruby-9.2.8.0
       gemfile: gemfiles/jruby.gemfile