diff --git a/.travis.yml b/.travis.yml
index a6cdc532..2b30ed4e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,8 @@
 rvm:
   - 1.8.7
   - 1.9.2
-  - rbx
-  - rbx-2.0
   - ree
   - jruby
-  - ruby-head
   - 1.8.6
 
 script: "rake test"