diff --git a/.travis.yml b/.travis.yml
index 9b503f1..009e18d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,9 @@
 language: ruby
 rvm:
   - 1.9.3
-  - 2.0
-  - 2.1
-  - 2.2
+  - 2.0.0
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
 bundler_args: --without development
 before_install: gem install bundler