diff --git a/.travis.yml b/.travis.yml
index 19ef269..15db7f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,10 +2,8 @@ language: ruby
 cache: bundler
 
 rvm:
-  - 2.0.0
-  - 2.1
-  - 2.2
-  - ruby-head
+  - 2.3.1
+  - 2.4.1
 
 bundler_args: --without development --retry=3 --jobs=3