diff --git a/.travis.yml b/.travis.yml
index 699137256e..920b005dc7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,6 +11,7 @@ rvm:
   - 2.1.10
   - 2.2.6
   - 2.3.3
+  - 2.4.0
   - ruby-head
   - rbx-2
   - jruby-1.7.25