diff --git a/.github/workflows/rspec.yaml b/.github/workflows/rspec.yaml
index 3ef9108..bd8c52d 100644
--- a/.github/workflows/rspec.yaml
+++ b/.github/workflows/rspec.yaml
@@ -5,19 +5,21 @@ on:
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
   cancel-in-progress: true
-env:
-  ruby: '3.5'
 jobs:
   rspec:
     name: Rspec
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3', '3.4', '4.0']
     steps:
     - name: Check out code
       uses: actions/checkout@v4
     - name: Setup ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: ${{ env.ruby }}
+        ruby-version: ${{ matrix.ruby }}
         rubygems: 3.4.10
         bundler-cache: true
     - name: Run rspec
diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index 63c2166..fc11170 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -6,7 +6,7 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
   cancel-in-progress: true
 env:
-  ruby: '3.5'
+  ruby: '4.0'
 jobs:
   rubocop:
     name: RuboCop