diff --git a/.github/workflows/default.yml b/.github/workflows/default.yml
index 3f634dffe..23365ba66 100644
--- a/.github/workflows/default.yml
+++ b/.github/workflows/default.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.7', '3.0', '3.1', '3.2']
+        ruby-version: ['2.7', '3.0', '3.1', '3.2', '3.3']
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby