diff --git a/.travis.yml b/.travis.yml
index 3f9e004..46eb168 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 language: ruby
 rvm:
+  - 2.5.0
   - 2.4.0
   - 2.3.3
   - 2.2.6