diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index e00a548..286dd0c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -10,11 +10,6 @@ jobs:
 
     runs-on: 'ubuntu-latest'
 
-    strategy:
-      matrix:
-        php-version:
-          - '8.1'
-
     steps:
       - name: 'Check out'
         uses: 'actions/checkout@v4'
@@ -22,7 +17,7 @@ jobs:
       - name: 'Set up PHP'
         uses: 'shivammathur/setup-php@v2'
         with:
-          php-version: '${{ matrix.php-version }}'
+          php-version: '8.1'
           coverage: 'none'
 
       - name: 'Check the code style'
@@ -35,11 +30,6 @@ jobs:
 
     runs-on: 'ubuntu-latest'
 
-    strategy:
-      matrix:
-        php-version:
-          - '8.1'
-
     steps:
       - name: 'Check out'
         uses: 'actions/checkout@v4'
@@ -47,7 +37,7 @@ jobs:
       - name: 'Set up PHP'
         uses: 'shivammathur/setup-php@v2'
         with:
-          php-version: '${{ matrix.php-version }}'
+          php-version: '8.1'
           coverage: 'none'
 
       - name: 'Install dependencies'
@@ -88,6 +78,15 @@ jobs:
           - php-version: '8.3'
             composer-options: '--prefer-stable'
             symfony-version: '7.2.*'
+          - php-version: '8.4'
+            composer-options: '--prefer-stable'
+            symfony-version: '6.4.*'
+          - php-version: '8.4'
+            composer-options: '--prefer-stable'
+            symfony-version: '7.1.*'
+          - php-version: '8.4'
+            composer-options: '--prefer-stable'
+            symfony-version: '7.2.*'
 
     steps:
       - name: 'Check out'