diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 02fb178..bb56174 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ '3.0', '2.7', '2.6', '2.5', 'jruby', 'truffleruby', 'truffleruby+graalvm-head' ]
+        ruby: [ '3.0', '2.7', '2.6', '2.5', 'jruby', 'truffleruby', 'truffleruby+graalvm' ]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout