diff --git a/.travis.yml b/.travis.yml
index 325c897..d42d286 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,9 +4,3 @@ rvm:
   - ree
   - 1.9.2
   - 1.9.3
-  - ruby-head
-  - rbx-18mode
-  - rbx-19mode
-  - jruby-18mode
-  - jruby-19mode
-  - jruby-head