diff --git a/.travis.yml b/.travis.yml
index 1a2470ac..328c0c57 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ rvm:
   - 2.3
   - 2.4
   - 2.5
+  - 2.6
   - ruby-head
 deploy:
   provider: rubygems