diff --git a/.travis.yml b/.travis.yml
index 16b84aa..4447af5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,10 @@ rvm:
   - 1.9.2
   - 1.9.3
   - 2.0.0
-  - 2.1.2
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
+
+sudo: false
 # uncomment this line if your project needs to run something other than `rake`:
-# script: bundle exec rspec spec
\ No newline at end of file
+# script: bundle exec rspec spec