diff --git a/.travis.yml b/.travis.yml
index dbbea441..67ca18e8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: ruby
 rvm:
-- 2.5.5
+- 2.6.6
 cache:
   directories:
   - vendor/bundle