diff --git a/.travis.yml b/.travis.yml
index 8316b818..7937a0fe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,8 @@ rvm:
   - 1.9.3
   - 2.0.0
   - 2.1.1
+  - 2.2.4
+  - 2.3.0
 
 before_install:
   - gem update bundler