.travis.yml in unicode-confusable-1.3.0 vs .travis.yml in unicode-confusable-1.3.1

@@ -2,15 +2,17 @@
 language: ruby
 
 script: bundle exec ruby spec/unicode_confusable_spec.rb
 
 rvm:
-- 2.4.2
-- 2.3.5
+- 2.5.1
+- 2.4.4
+- 2.3.7
 - 2.2
 - ruby-head
 - jruby-head
-- jruby-9.1.12.0
+- jruby-9.1.16.0
 
 matrix:
   allow_failures:
+    - rvm: 2.2
     - rvm: jruby-head