diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c9bd1ab..30944c4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,6 +17,7 @@ jobs:
           - { ruby: "ruby-head", ignore: true }
           - { ruby: "jruby-9.3.9.0", ignore: true }
           - { ruby: "jruby-head", ignore: true }
+          - { ruby: "truffleruby-head", ignore: true }
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby