diff --git a/.travis.yml b/.travis.yml
index 1da430f..280cdcf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,7 +18,7 @@ addons:
     - jhead
 
 rvm:
-  - 2.3.3
+  - 2.4.0
 
 services:
   - redis-server