diff --git a/.github/workflows/ci-linux.yaml b/.github/workflows/ci-linux.yaml
index 2f0449821..3c7486990 100644
--- a/.github/workflows/ci-linux.yaml
+++ b/.github/workflows/ci-linux.yaml
@@ -52,6 +52,9 @@ jobs:
                     - php-version: '8.1'
                       symfony-version: '6.4.*'
                       dependency-versions: 'lowest'
+                    - php-version: '8.4'
+                      symfony-version: '8.0.x-dev'
+                      dependency-versions: 'highest'
 
         steps:
             - name: Checkout code
diff --git a/composer.json b/composer.json
index 28b0594f1..78e9455d0 100644
--- a/composer.json
+++ b/composer.json
@@ -12,30 +12,29 @@
         }
     ],
     "minimum-stability": "dev",
-    "prefer-stable": true,
     "require": {
         "php": ">=8.1",
         "doctrine/inflector": "^2.0",
         "nikic/php-parser": "^5.0",
-        "symfony/config": "^6.4|^7.0",
-        "symfony/console": "^6.4|^7.0",
-        "symfony/dependency-injection": "^6.4|^7.0",
+        "symfony/config": "^6.4|^7.0|^8.0",
+        "symfony/console": "^6.4|^7.0|^8.0",
+        "symfony/dependency-injection": "^6.4|^7.0|^8.0",
         "symfony/deprecation-contracts": "^2.2|^3",
-        "symfony/filesystem": "^6.4|^7.0",
-        "symfony/finder": "^6.4|^7.0",
-        "symfony/framework-bundle": "^6.4|^7.0",
-        "symfony/http-kernel": "^6.4|^7.0",
-        "symfony/process": "^6.4|^7.0"
+        "symfony/filesystem": "^6.4|^7.0|^8.0",
+        "symfony/finder": "^6.4|^7.0|^8.0",
+        "symfony/framework-bundle": "^6.4|^7.0|^8.0",
+        "symfony/http-kernel": "^6.4|^7.0|^8.0",
+        "symfony/process": "^6.4|^7.0|^8.0"
     },
     "require-dev": {
         "composer/semver": "^3.0",
         "doctrine/doctrine-bundle": "^2.5.0",
         "doctrine/orm": "^2.15|^3",
-        "symfony/http-client": "^6.4|^7.0",
-        "symfony/phpunit-bridge": "^6.4.1|^7.0",
-        "symfony/security-core": "^6.4|^7.0",
-        "symfony/security-http": "^6.4|^7.0",
-        "symfony/yaml": "^6.4|^7.0",
+        "symfony/http-client": "^6.4|^7.0|^8.0",
+        "symfony/phpunit-bridge": "^6.4.1|^7.0|^8.0",
+        "symfony/security-core": "^6.4|^7.0|^8.0",
+        "symfony/security-http": "^6.4|^7.0|^8.0",
+        "symfony/yaml": "^6.4|^7.0|^8.0",
         "twig/twig": "^3.0|^4.x-dev"
     },
     "config": {