diff --git a/.travis.yml b/.travis.yml
index 0cb811d68d..e98b4abc52 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,8 @@ branches:
 rvm:
   - 1.9.3
   - 2.0.0
+  - 2.1.5
+  - 2.3.0
 env:
   global:
     - S3_REGION=us-east-1