.travis.yml in sideband-1.0.3 vs .travis.yml in sideband-1.0.4

@@ -1,6 +1,6 @@
 language: ruby
 rvm:
   - 1.9.3
   - 2.0.0
   - jruby-19mode
-  - rbx-19mode
\ No newline at end of file
+  - jruby-20mode