diff --git a/.travis.yml b/.travis.yml
index 54d773a..805c50c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: ruby
 rvm:
-  - 2.3.0
+  - 2.3.4
+  - 2.4.1
   - ruby-head
 
 script: