diff --git a/composer.json b/composer.json
index 499a657b..679e61ab 100644
--- a/composer.json
+++ b/composer.json
@@ -91,7 +91,7 @@
         "phpstan/phpstan": "^2.0",
         "phpunit/phpunit": "^10.5",
         "roave/security-advisories": "dev-latest",
-        "squizlabs/php_codesniffer": "^3.9",
+        "squizlabs/php_codesniffer": "^4.0",
         "vimeo/psalm": "^5.26"
     },
     "config": {
diff --git a/composer.lock b/composer.lock
index dfb28e14..080cf66a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "f1498cc9d23b98e87d80ea7f5757043c",
+    "content-hash": "a2e8415ee3dc2d0af3099f3524fd5649",
     "packages": [
         {
             "name": "adbario/php-dot-notation",
@@ -8724,26 +8724,31 @@
         },
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "3.13.6",
+            "version": "4.0.4",
             "source": {
                 "type": "git",
                 "url": "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/PHPCSStandards/PHP_CodeSniffer.git",
-                "reference": "4c378e1a528ea066890fc2397cbdd2f94eb2fc91"
+                "reference": "bbdc3d0532623e21838b7041a4364383a8126f96"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPCSStandards/PHP_CodeSniffer/zipball/4c378e1a528ea066890fc2397cbdd2f94eb2fc91",
-                "reference": "4c378e1a528ea066890fc2397cbdd2f94eb2fc91",
+                "url": "https://api.github.com/repos/PHPCSStandards/PHP_CodeSniffer/zipball/bbdc3d0532623e21838b7041a4364383a8126f96",
+                "reference": "bbdc3d0532623e21838b7041a4364383a8126f96",
                 "shasum": ""
             },
             "require": {
+                "ext-libxml": "*",
                 "ext-simplexml": "*",
                 "ext-tokenizer": "*",
                 "ext-xmlwriter": "*",
-                "php": ">=5.4.0"
+                "php": ">=7.2.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0 || ^8.0 || ^9.3.4"
+                "phpunit/phpunit": "^8.4.0 || ^9.3.4 || ^10.5.32 || 11.3.3 - 11.5.28 || ^11.5.31"
+            },
+            "suggest": {
+                "ext-iconv": "For accurate character length calculation when the checked files contain multi-byte characters.",
+                "ext-pcntl": "For parallel processing support via the --parallel CLI option."
             },
             "bin": [
                 "bin/phpcbf",
@@ -8768,7 +8773,7 @@
                     "homepage": "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/PHPCSStandards/PHP_CodeSniffer/graphs/contributors"
                 }
             ],
-            "description": "PHP_CodeSniffer tokenizes PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.",
+            "description": "PHP_CodeSniffer tokenizes PHP files and detects violations of a defined set of coding standards.",
             "homepage": "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/PHPCSStandards/PHP_CodeSniffer",
             "keywords": [
                 "phpcs",
@@ -8799,7 +8804,7 @@
                     "type": "thanks_dev"
                 }
             ],
-            "time": "2026-08-06T00:17:32+00:00"
+            "time": "2026-08-06T02:45:27+00:00"
         },
         {
             "name": "symfony/config",