diff --git a/.travis.yml b/.travis.yml
index b372d08..fc51989 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ rvm:
   - 2.5
   - 2.6
   - 2.7
+  - 3.0
   - jruby
 jdk:
   - openjdk11