diff --git a/.github/workflows/website-deploy.yml b/.github/workflows/website-deploy.yml
index 0b74bc8..e15e465 100644
--- a/.github/workflows/website-deploy.yml
+++ b/.github/workflows/website-deploy.yml
@@ -9,7 +9,7 @@ jobs:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.4.8
+          ruby-version: 4.0.1
           bundler-cache: true
       - name: install dependencies
         run: |