diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0e151f5..290ebfe 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ 3.0, 3.1, 3.2, jruby-9.4 ]
+        ruby: [ 3.0, 3.1, 3.2, 3.3, 3.4, jruby-9.4 ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4