CONTRIBUTING.md in absolutely-2.0.0 vs CONTRIBUTING.md in absolutely-2.1.0

@@ -6,10 +6,10 @@
 1. Review open [pull requests][pulls].
 1. Report a new [issue][issues]. _Only do this after you've made sure the behavior or problem you're observing isn't already documented in an open issue._
 
 ## Getting Started
 
-Absolutely is developed using Ruby 2.4.6 and is additionally tested against Ruby 2.5.5 and 2.6.2 using [Travis CI](https://travis-ci.com/jgarber623/absolutely).
+Absolutely is developed using Ruby 2.4.6 and is additionally tested against Ruby 2.5.5 and 2.6.3 using [Travis CI](https://travis-ci.com/jgarber623/absolutely).
 
 Before making changes to Absolutely, you'll want to install Ruby 2.4.6. It's recommended that you use a Ruby version managment tool like [rbenv](https://github.com/rbenv/rbenv), [chruby](https://github.com/postmodern/chruby), or [rvm](https://github.com/rvm/rvm). Once you've installed Ruby 2.4.6 using your method of choice, install the project's gems by running:
 
 ```sh
 bundle install