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

@@ -2,16 +2,21 @@
 language: ruby
 
 script: bundle exec ruby spec/unicode_numeric_value_spec.rb
 
 rvm:
-- 2.4.1
-- 2.3.4
+- ruby-head
+- 2.5.1
+- 2.4.4
+- 2.3.7
 - 2.2
 - 2.1
-- ruby-head
+- 2.0
 - jruby-head
-- jruby-9.1.12.0
+- jruby-9.1.16.0
 
 matrix:
   allow_failures:
+    - rvm: 2.2
+    - rvm: 2.1
+    - rvm: 2.0
     - rvm: jruby-head