diff --git a/.travis.yml b/.travis.yml
index b5f465071d..699137256e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,8 +9,8 @@ rvm:
   - 1.9.3
   - 2.0.0
   - 2.1.10
-  - 2.2.5
-  - 2.3.1
+  - 2.2.6
+  - 2.3.3
   - ruby-head
   - rbx-2
   - jruby-1.7.25