diff --git a/.travis.yml b/.travis.yml
index ca7e7633..03b75140 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,10 @@ rvm:
   - 1.8.7
   - 1.9.2
   - 1.9.3
-  - jruby
+  - jruby-18mode
+  - jruby-19mode
+  - rbx-18mode
+  - rbx-19mode
   
 script: "bundle exec rake test"
   
@@ -12,4 +15,7 @@ branches:
 
 matrix:
   allow_failures:
-    - rvm: jruby
\ No newline at end of file
+    - rvm: jruby-18mode
+    - rvm: jruby-19mode
+    - rvm: rbx-18mode
+    - rvm: rbx-19mode
\ No newline at end of file