diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 17902c7..689a8c7 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: [2.6, 2.7, 3.0, 3.1, 3.2]
+        ruby-version: [2.6, 2.7, 3.0, 3.1, 3.2, 3.3]
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby