diff --git a/.travis.yml b/.travis.yml
index 5f65c6a..a1d0072 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,8 +3,7 @@ language: ruby
 sudo: false
 
 rvm:
-  - 2.3.1
-  - 2.2.5
+  - 2.1.1
   - 1.9.3
   - rbx-2.2.10
   - jruby-19mode