.travis.yml in shoryuken-2.1.3 vs .travis.yml in shoryuken-3.0.0

@@ -1,9 +1,10 @@
 language: ruby
 rvm:
   - 2.0.0
   - 2.1.0
   - 2.2.0
+  - 2.3.3
 
 notifications:
   email:
     on_success: change
     on_failure: always