.travis.yml in pg_objects-0.4.3 vs .travis.yml in pg_objects-0.4.4

@@ -1,11 +1,11 @@
 sudo: false
 language: ruby
 rvm:
   - 2.3.8
   - 2.4.5
-  - 2.5.3
-  - 2.6.0
+  - 2.5.5
+  - 2.6.2
 before_install: gem install bundler -v 1.16.2
 script:
  - bundle exec rspec spec
  - bundle exec rubocop