diff --git a/.travis.yml b/.travis.yml
index 63e2a359f..4955fd441 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 language: ruby
 rvm:
-  - "2.2.5"
+  - 2.2
+  - 2.3
+  - 2.4
   - ruby-head
 script:
   - bundle exec rake