diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index ae4a9f5..babc2bb 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -2,9 +2,9 @@ name: Test
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
 jobs:
   test:
@@ -13,14 +13,14 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        ruby: ['2.6', '2.7', '3.0', '3.1']
+        ruby: ["3.0", "3.1", "3.2", "3.3"]
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Ruby versions
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: ${{ matrix.ruby }}
-    - name: Build and test with Rake
-      run: |
-        bundle install
-        bundle exec rake
+      - uses: actions/checkout@v4
+      - name: Set up Ruby versions
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+      - name: Build and test with Rake
+        run: |
+          bundle install
+          bundle exec rake