diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 014ef30..29ec3cb 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -54,3 +54,7 @@ jobs:
       - name: Run tests
         run: |
           vendor/bin/phpunit
+
+      - name: Validate composer.json
+        run: |
+          composer validate --strict
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
deleted file mode 100644
index 7a227eb..0000000
--- a/.github/workflows/ci.yml
+++ /dev/null
@@ -1,56 +0,0 @@
-name: CI
-
-on:
-  pull_request:
-  push:
-    branches:    
-      - master
-      - main
-
-jobs:
-
-  tests:
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        php-version: ['7.0', '7.1', '7.2', '7.3', '7.4']
-        dependencies: ['']
-        include:
-          - { php-version: '8.0', dependencies: '--ignore-platform-req=php' }
-
-    continue-on-error: ${{ matrix.php-version == '8.0' }}
-    name: PHP ${{ matrix.php-version }} ${{ matrix.dependencies }}
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v1
-
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v1
-        with:
-          php-version: ${{ matrix.php-version }}
-          extensions:
-          coverage: none
-          tools: composer:v2
-
-      - name: Cache dependencies
-        uses: actions/cache@v2
-        with:
-          path: ~/.cache/composer
-          key: composer-${{ matrix.php-version }}-${{ hashFiles('**/composer.*') }}
-          restore-keys: |
-            composer-${{ matrix.php-version }}-
-            composer-
-
-      - name: Install dependencies
-        run: |
-          composer update --prefer-dist --no-interaction --no-progress ${{ matrix.dependencies }}
-
-      - name: Execute tests
-        run: |
-          php vendor/bin/phpunit
-
-      - name: Validate composer.json
-        run: |
-          composer validate --strict