diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 98f73108..6e9458c7 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: [ '3.0.0', '3.1.0', '3.2.0', '3.3.0' ]
+        ruby: [ '3.0.0' ]
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby ${{ matrix.ruby }}