diff --git a/.travis.yml b/.travis.yml
index ce29241..0af306e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,3 +9,5 @@ rvm:
   - "2.0"
   - "2.1"
   - "2.2"
+  - "2.3"
+  - "2.4"