diff --git a/.travis.yml b/.travis.yml
index 479afa0..87884d1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,9 @@
 language: ruby
 rvm:
-  - "2.0.0"
-  - "2.1.0"
+  - 2.0
+  - 2.1
+  - 2.2
+  - 2.3
+  - 2.4
+  - 2.5
 script: "bundle exec rake"