diff --git a/.travis.yml b/.travis.yml
index 853f78f..ef0822b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,8 +5,8 @@ rvm:
   - 1.9.3
   - 2.0.0
   - 2.1.10
-  - 2.2.6
-  - 2.3.3
+  - 2.2.7
+  - 2.3.4
   - 2.4.1
   - jruby-19mode
   - jruby-9