diff --git a/.travis.yml b/.travis.yml
index e8656bd..d64810a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,3 +3,5 @@ language: ruby
 rvm:
 - 1.8.7
 - 1.9.3
+- jruby-19mode
+- rbx-19mode