diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index cb9a946..cb73b40 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -89,7 +89,7 @@ jobs:
 
             -
                 name: 'Install dependencies'
-                run: 'composer install --no-progress'
+                run: 'composer update --no-progress --prefer-stable'
 
             -
                 name: 'Run PhpStan'
@@ -103,10 +103,6 @@ jobs:
         strategy:
             matrix:
                 include:
-                    -
-                        php-version: '8.1'
-                        composer-options: '--prefer-stable'
-                        symfony-version: '6.3'
                     -
                         php-version: '8.2'
                         composer-options: '--prefer-stable'
@@ -115,7 +111,12 @@ jobs:
                     -
                         php-version: '8.2'
                         composer-options: '--prefer-stable'
-                        symfony-version: '^7.0'
+                        symfony-version: '^7.4'
+
+                    -
+                        php-version: '8.4'
+                        composer-options: '--prefer-stable'
+                        symfony-version: '^8.0'
 
         steps:
             -
diff --git a/README.md b/README.md
index 97e7681..3cab210 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ and install them for you.
 
 ## Requirements
 
-You need at least PHP 7.4, mbstring is recommended but not required.
+You need at least PHP 8.0 and Symfony 6.4, mbstring is recommended but not required.
 
 ## Usage
 
diff --git a/composer.json b/composer.json
index f7aa2a5..8e51725 100644
--- a/composer.json
+++ b/composer.json
@@ -19,17 +19,17 @@
         }
     ],
     "require": {
-        "php": ">=7.4",
+        "php": ">=8.0",
         "symfony/polyfill-mbstring": "^1.5.0",
-        "symfony/validator": "^5.0 || ^6.0 || ^7.0"
+        "symfony/validator": "^6.4 || ^7.4 || ^8.0"
     },
     "require-dev": {
         "phpstan/phpstan": "^1.10.39",
         "phpstan/phpstan-phpunit": "1.3.15",
         "phpunit/phpunit": "^9.5",
         "rollerscapes/standards": "^1.0",
-        "symfony/framework-bundle": "^5.3 || ^6.0 || ^7.0",
-        "symfony/phpunit-bridge": "^5.3 || ^6.0 || ^7.0"
+        "symfony/framework-bundle": "^6.4 || ^7.4 || ^8.0",
+        "symfony/phpunit-bridge": "^6.4 || ^7.4 || ^8.0"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,
diff --git a/src/Constraints/NotInPasswordCommonList.php b/src/Constraints/NotInPasswordCommonList.php
index dfc71ae..478d5ff 100644
--- a/src/Constraints/NotInPasswordCommonList.php
+++ b/src/Constraints/NotInPasswordCommonList.php
@@ -25,7 +25,7 @@ final class NotInPasswordCommonList extends Constraint
 {
     public string $message = 'This Password was found among the 1,000,000 most common passwords. Please use another password.';
 
-    public function __construct(string $message = null, $options = null, array $groups = null, $payload = null)
+    public function __construct(?string $message = null, ?array $options = null, ?array $groups = null, mixed $payload = null)
     {
         parent::__construct($options, $groups, $payload);
 
diff --git a/tests/Constraints/NotInPasswordCommonListTest.php b/tests/Constraints/NotInPasswordCommonListTest.php
index 7fe3328..80b6aaa 100644
--- a/tests/Constraints/NotInPasswordCommonListTest.php
+++ b/tests/Constraints/NotInPasswordCommonListTest.php
@@ -96,7 +96,7 @@ public function __toString(): string
     }
 
     /** @return iterable<int, array{0: string}> */
-    public function provide_unsafe_passwords(): iterable
+    public static function provide_unsafe_passwords(): iterable
     {
         yield ['hunter'];
         yield ['123qwe123'];