diff --git a/.travis.yml b/.travis.yml
index 55a9eea..f1f6f5f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.5.0
+  - ruby-head
 before_install: gem install bundler -v 1.14.6