diff --git a/.travis.yml b/.travis.yml
index 4cf6110..a857ea5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,12 @@ rvm:
 - 1.8.7
 - 1.9.2
 - 1.9.3
+- 2.0.0
+- 2.1.10
+- 2.2.9
+- 2.3.7
+- 2.4.4
+- 2.5.1
 - rbx-18mode
 - rbx-19mode
 - jruby-18mode