.travis.yml in slippery-0.2.0 vs .travis.yml in slippery-0.3.0

@@ -1,9 +1,9 @@
 language: ruby
 rvm:
   - 1.9.3
   - 2.0.0
-  - 2.1.0
+  - 2.1.1
   - jruby-19mode
   - rbx
   - ruby-head
   - jruby-head
 matrix: