diff --git a/.travis.yml b/.travis.yml
index 30f84f4..a94c243 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,8 @@ rvm:
   - 1.8.7
   - 1.9.2
   - 1.9.3
+  - jruby-19mode
+  - rbx-19mode
 
 notifications:
   email: false