diff --git a/.travis.yml b/.travis.yml
index 360174d..93c2c35 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,10 @@
 language: ruby
 
 rvm:
-  - 2.4.1
-  - 2.3.4
-  - 2.2.7
+  - 2.5.0
+  - 2.4.3
+  - 2.3.6
+  - 2.2.9
   - 2.1
 gemfile:
   - Gemfile