diff --git a/.github/workflows/code_analysis.yaml b/.github/workflows/code_analysis.yaml
index f7fca2a2..c4f9ee8c 100644
--- a/.github/workflows/code_analysis.yaml
+++ b/.github/workflows/code_analysis.yaml
@@ -28,10 +28,6 @@ jobs:
                         name: 'Coding Standard'
                         run: composer fix-cs --ansi
 
-                    -
-                        name: 'Class Leak'
-                        run: vendor/bin/class-leak check src tests --skip-path=Fixture --skip-path=Source --skip-type="Rector\\ArgTyper\\PHPStan\\IgnoreAllErrorsExceptArgTyperErrorExtension"
-
                     -
                         name: 'Tests'
                         run: vendor/bin/phpunit
@@ -56,7 +52,7 @@ jobs:
             # see https://github.com/shivammathur/setup-php
             -   uses: shivammathur/setup-php@v2
                 with:
-                    php-version: 8.2
+                    php-version: 8.3
                     coverage: none
 
             # composer install cache - https://github.com/ramsey/composer-install
diff --git a/.github/workflows/downgraded_release.yaml b/.github/workflows/downgraded_release.yaml
index c3900662..3176712b 100644
--- a/.github/workflows/downgraded_release.yaml
+++ b/.github/workflows/downgraded_release.yaml
@@ -17,7 +17,7 @@ jobs:
             -
                 uses: "shivammathur/setup-php@v2"
                 with:
-                    php-version: 8.2
+                    php-version: 8.3
                     coverage: none
 
             # invoke patches
diff --git a/composer.json b/composer.json
index 60dba8d2..46127fb4 100644
--- a/composer.json
+++ b/composer.json
@@ -6,26 +6,27 @@
         "bin/argtyper"
     ],
     "require": {
-        "php": "^8.2",
-        "illuminate/container": "^12.39",
-        "nette/utils": "^4.0",
+        "php": "^8.3",
+        "illuminate/container": "12.39.*",
+        "nette/utils": "^4.1",
         "phpstan/phpstan": "^2.1",
-        "rector/rector": "^2.2",
+        "rector/rector": "^2.3",
         "symfony/console": "^6.4",
-        "symfony/finder": "^7.3",
-        "symfony/process": "^7.3",
-        "webmozart/assert": "^1.12"
+        "symfony/finder": "^7.4",
+        "symfony/process": "^7.4",
+        "webmozart/assert": "^1.12|^2.0"
     },
     "require-dev": {
         "php-parallel-lint/php-parallel-lint": "^1.4",
-        "phpecs/phpecs": "^2.2",
+        "phpecs/phpecs": "^2.3",
         "phpstan/extension-installer": "^1.4",
         "phpunit/phpunit": "^11.5",
+        "rector/jack": "^0.5.1",
         "shipmonk/composer-dependency-analyser": "^1.8",
         "symplify/phpstan-extensions": "^12.0",
         "tomasvotruba/class-leak": "^2.1",
         "tomasvotruba/unused-public": "^2.1",
-        "tracy/tracy": "^2.10"
+        "tracy/tracy": "^2.11"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/Helpers/ProjectDirectoryFinder.php b/src/Helpers/ProjectDirectoryFinder.php
index 7e944f91..5171737e 100644
--- a/src/Helpers/ProjectDirectoryFinder.php
+++ b/src/Helpers/ProjectDirectoryFinder.php
@@ -14,7 +14,7 @@ final class ProjectDirectoryFinder
      * Directory names commonly used as PHP source directories
      * @var string[]
      */
-    private const POSSIBLE_CODE_DIRECTORIES = ['src', 'lib', 'app', 'test', 'tests'];
+    private const array POSSIBLE_CODE_DIRECTORIES = ['src', 'lib', 'app', 'test', 'tests'];
 
     /**
      * @return string[]
diff --git a/src/PHPStan/IgnoreAllErrorsExceptArgTyperErrorExtension.php b/src/PHPStan/IgnoreAllErrorsExceptArgTyperErrorExtension.php
index 2b09b5de..dc12a032 100644
--- a/src/PHPStan/IgnoreAllErrorsExceptArgTyperErrorExtension.php
+++ b/src/PHPStan/IgnoreAllErrorsExceptArgTyperErrorExtension.php
@@ -13,7 +13,7 @@ final class IgnoreAllErrorsExceptArgTyperErrorExtension implements IgnoreErrorEx
 {
     public function shouldIgnore(Error $error, Node $node, Scope $scope): bool
     {
-		// Ignore all errors since ArgTyper only collects types and doesn't throw errors
+        // Ignore all errors since ArgTyper only collects types and doesn't throw errors
         return true;
     }
 }
diff --git a/tests/PHPStan/CollectCallLikeArgTypesRule/CollectCallLikeArgTypesRuleTest.php b/tests/PHPStan/CollectCallLikeArgTypesRule/CollectCallLikeArgTypesRuleTest.php
index 9d8f110f..e134b47c 100644
--- a/tests/PHPStan/CollectCallLikeArgTypesRule/CollectCallLikeArgTypesRuleTest.php
+++ b/tests/PHPStan/CollectCallLikeArgTypesRule/CollectCallLikeArgTypesRuleTest.php
@@ -104,6 +104,7 @@ public function testFloatAsInt(): void
     /**
      * @return string[]
      */
+    #[\Override]
     public static function getAdditionalConfigFiles(): array
     {
         return [__DIR__ . '/../../../config/phpstan-collecting-data.neon'];
diff --git a/tests/PHPStan/CollectFuncCallArgTypesRule/CollectFuncCallArgTypesRuleTest.php b/tests/PHPStan/CollectFuncCallArgTypesRule/CollectFuncCallArgTypesRuleTest.php
index ffbe9df1..32f4f39f 100644
--- a/tests/PHPStan/CollectFuncCallArgTypesRule/CollectFuncCallArgTypesRuleTest.php
+++ b/tests/PHPStan/CollectFuncCallArgTypesRule/CollectFuncCallArgTypesRuleTest.php
@@ -38,6 +38,7 @@ public function test(): void
     /**
      * @return string[]
      */
+    #[\Override]
     public static function getAdditionalConfigFiles(): array
     {
         return [__DIR__ . '/../../../config/phpstan-collecting-data.neon'];