diff --git a/.travis.yml b/.travis.yml
index c1449a6..36194a7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,8 +9,8 @@ rvm:
   - 2.0.0
   - 2.1
   - 2.2
-  - 2.3.3
-  - 2.4.0
+  - 2.3.4
+  - 2.4.1
   - ruby-head
 
 before_install: gem update bundler