diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 12af078..232ee0c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,8 +10,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/cache@v2
+      - uses: actions/checkout@v4
+      - uses: actions/cache@v4
         with:
           path: vendor/bundle
           key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile') }}
@@ -19,7 +19,7 @@ jobs:
             ${{ runner.os }}-gems-
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.6
+          ruby-version: 3.3
           bundler-cache: true
       - name: jekyll build
         run: bundle exec jekyll build