diff --git a/.travis.yml b/.travis.yml
index 3da2534d..e3269769 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ rvm:
   - 2.3.0
   - ruby-head
   - jruby
-  - rbx-2
+  - rbx-2.11
 
 matrix:
   allow_failures: