diff --git a/.travis.yml b/.travis.yml
index 9a111bf3..fd26922c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,7 @@ rvm:
   - 2.6.0
   - 2.6.1
   - 2.6.2
+  - 2.6.3
   - ruby-head
 before_install:
   - "echo 'gem: --no-ri --no-rdoc' > ~/.gemrc"