diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a210d71..fde534a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ["3.0", "3.1", "3.2"]
+        ruby-version: ["3.0", "3.1", "3.2", "3.3"]
 
     steps:
       - uses: actions/checkout@v3