diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2d4bc0d..0c1f42f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ['2.7', '3.0', '3.1', '3.2']
+        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3']
     env:
       BUNDLE_PATH_RELATIVE_TO_CWD: true