diff --git a/.travis.yml b/.travis.yml
index f5b627ff..d4da2c1f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,4 +6,5 @@ rvm:
   - 2.3
   - 2.4
   - 2.5
+  - 2.6
   - ruby-head