diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index de8a590..4ecbefb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu"]
-        ruby: ["3.2"]
+        ruby: ["3.3"]
     steps:
       - uses: actions/checkout@v3
         with: