diff --git a/.travis.yml b/.travis.yml
index b3a0eec4..d58b8ad6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,9 +3,13 @@ rvm:
   - 1.8.7
   - 1.9.2
   - 1.9.3
-  - rbx
-  - rbx-2.0
+  - rbx-18mode
+  - rbx-19mode
   - jruby
   - ree
+matrix:
+  allow_failures:
+    - rvm: rbx-18mode
+    - rvm: rbx-19mode
 notifications:
   email: false