diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 83da1a6..e5eecdc 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,10 +15,10 @@ jobs:
     if: github.repository_owner == 'betadots'
     steps:
       - uses: actions/checkout@v4
-      - name: Install Ruby 3.0
+      - name: Install Ruby 3.3
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.0'
+          ruby-version: '3.3'
         env:
           BUNDLE_WITHOUT: release:development:rubocop
       - name: Build gem
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 8f13232..0a7fc52 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,7 +18,7 @@ jobs:
       - name: Install Ruby ${{ matrix.ruby }}
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.2"
+          ruby-version: "3.3"
           bundler-cache: true
       - name: Run Rubocop
         run: bundle exec rake rubocop
@@ -32,6 +32,7 @@ jobs:
           - "3.0"
           - "3.1"
           - "3.2"
+          - "3.3"
     name: Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v4