diff --git a/.travis.yml b/.travis.yml
index a8f407e5..3ea3a9be 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,7 @@ rvm:
   - 2.7
   - ruby-head
   - jruby
+  - truffleruby-head
 matrix:
   allow_failures:
     - rvm: 1.8.7