diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3bb173d..7318ce0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,14 +13,14 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: ["8.0", "8.1", "8.2", "8.3"]
+        php-versions: ["8.0", "8.1", "8.2", "8.3", "8.4"]
         composer-args: ["", "--prefer-lowest"]
     runs-on: ${{ matrix.operating-system }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup PHP
-        uses: shivammathur/setup-php@2.30.2
+        uses: shivammathur/setup-php@2.32.0
         with:
           php-version: ${{ matrix.php-versions }}
           extensions: mbstring
@@ -49,7 +49,7 @@ jobs:
       - name: Test
         run: composer test-with-coverage
       - name: Upload Coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v5
         with:
           files: ./clover.xml
           verbose: true
diff --git a/composer.json b/composer.json
index 74098ef..0d8b6f9 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     "license": "BSD-3-Clause",
     "prefer-stable": true,
     "require": {
-        "php": "~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0",
+        "php": "~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0",
         "diablomedia/zendframework1-loader": "^1.0.5",
         "diablomedia/zendframework1-registry": "^1.0.5",
         "diablomedia/zendframework1-translate": "^1.0.5",
@@ -29,8 +29,8 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^9.6.19 || ^10.5.18",
-        "phpstan/phpstan": "1.10.67",
-        "friendsofphp/php-cs-fixer": "3.54.0",
+        "phpstan/phpstan": "2.1.1",
+        "friendsofphp/php-cs-fixer": "3.67.0",
         "maglnet/composer-require-checker": "^3.0.0",
         "phpro/grumphp-shim": "^2.0.0"
     },
diff --git a/grumphp.yml.dist b/grumphp.yml.dist
index ed37d03..dfa2976 100644
--- a/grumphp.yml.dist
+++ b/grumphp.yml.dist
@@ -1,5 +1,8 @@
 # grumphp.yml
 grumphp:
+    environment:
+        variables:
+            PHP_CS_FIXER_IGNORE_ENV: "true"
     tasks:
         composer:
             strict: true
diff --git a/phpstan.neon b/phpstan.neon
index 4fe2cc7..9e8bee4 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,5 +1,4 @@
 parameters:
-    checkMissingIterableValueType: false
     level: 7
     paths:
         - ./
@@ -9,6 +8,8 @@ parameters:
     ignoreErrors:
         - '#Method Zend_Filter_Input::_getFilter\(\) should return Zend_Filter_Interface but returns Zend_Filter_Interface\|Zend_Validate_Interface\.#'
         - '#Method Zend_Filter_Input::_getValidator\(\) should return Zend_Validate_Interface but returns Zend_Filter_Interface\|Zend_Validate_Interface\.#'
+        -
+            identifier: missingType.iterableValue
         -
             message: '#Method Zend_Filter_Input::_getFilterOrValidator\(\) should return Zend_Filter_Interface\|Zend_Validate_Interface but returns object\.#'
             path: %currentWorkingDirectory%/src/Zend/Filter/Input.php
diff --git a/src/Zend/Filter/Input.php b/src/Zend/Filter/Input.php
index 70fa0be..dacb9b0 100644
--- a/src/Zend/Filter/Input.php
+++ b/src/Zend/Filter/Input.php
@@ -143,10 +143,10 @@ class Zend_Filter_Input
     /**
      * @param array $filterRules
      * @param array $validatorRules
-     * @param array $data       OPTIONAL
-     * @param array $options    OPTIONAL
+     * @param array|null $data       OPTIONAL
+     * @param array|null $options    OPTIONAL
      */
-    public function __construct($filterRules, $validatorRules, array $data = null, array $options = null)
+    public function __construct($filterRules, $validatorRules, array|null $data = null, array|null $options = null)
     {
         if ($options) {
             $this->setOptions($options);