.travis.yml in rasti-form-4.0.0 vs .travis.yml in rasti-form-5.0.0

@@ -1,15 +1,15 @@
 language: ruby
 
 rvm:
-  - 2.0
   - 2.1
   - 2.2
   - 2.3
   - 2.4
   - 2.5
   - 2.6
   - 2.7
+  - 3.0
   - jruby-9.2.9.0
   - ruby-head
   - jruby-head
 
 matrix:
\ No newline at end of file