diff --git a/.travis.yml b/.travis.yml
index 1ecf0ef..bcb3720 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ cache: bundler
 rvm:
   - 2.1.5
   - 2.2.1
+  - 2.3.0
   - jruby-19mode
 branches:
   only: