diff --git a/.travis.yml b/.travis.yml
index 0769f80..360174d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,9 @@
 language: ruby
 
 rvm:
-  - 2.4.0
-  - 2.3.3
-  - 2.2.5
+  - 2.4.1
+  - 2.3.4
+  - 2.2.7
   - 2.1
 gemfile:
   - Gemfile