.travis.yml in bootstrap-sass-3.1.0.1 vs .travis.yml in bootstrap-sass-3.1.0.2

@@ -1,10 +1,10 @@
 language: ruby
 rvm:
   - 2.0.0
   - 1.9.3
   - jruby
-  - rbx
+  - rbx-2.2.4
 gemfile:
   - test/gemfiles/sass_3_2.gemfile
   - test/gemfiles/sass_head.gemfile
 matrix:
   allow_failures: