diff --git a/tools/phpstan/composer.json b/tools/phpstan/composer.json
index 5ad8cd1..1f21441 100644
--- a/tools/phpstan/composer.json
+++ b/tools/phpstan/composer.json
@@ -2,7 +2,7 @@
     "name": "coduo/php-matcher-tools",
     "description": "Coduo PHP Matcher - Tools",
     "require-dev": {
-        "phpstan/phpstan": "2.1.54"
+        "phpstan/phpstan": "2.3.4"
     },
     "config": {
         "allow-plugins": false,
diff --git a/tools/phpstan/composer.lock b/tools/phpstan/composer.lock
index 5481467..bdac23a 100644
--- a/tools/phpstan/composer.lock
+++ b/tools/phpstan/composer.lock
@@ -4,16 +4,16 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "bf28a9fb2f74be3d7d147c43c0234386",
+    "content-hash": "cda70ccdd33e4738c7a39d4a3315c3c9",
     "packages": [],
     "packages-dev": [
         {
             "name": "phpstan/phpstan",
-            "version": "2.1.54",
+            "version": "2.3.4",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/8be50c3992107dc837b17da4d140fbbdf9a5c5bd",
-                "reference": "8be50c3992107dc837b17da4d140fbbdf9a5c5bd",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/f20ce6f3c82556cfcfc086b152445a12d1d64fff",
+                "reference": "f20ce6f3c82556cfcfc086b152445a12d1d64fff",
                 "shasum": ""
             },
             "require": {
@@ -36,6 +36,17 @@
             "license": [
                 "MIT"
             ],
+            "authors": [
+                {
+                    "name": "Ondřej Mirtes"
+                },
+                {
+                    "name": "Markus Staab"
+                },
+                {
+                    "name": "Vincent Langlet"
+                }
+            ],
             "description": "PHPStan - PHP Static Analysis Tool",
             "keywords": [
                 "dev",
@@ -58,7 +69,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2026-04-29T13:31:09+00:00"
+            "time": "2026-10-28T22:38:53+00:00"
         }
     ],
     "aliases": [],
@@ -71,5 +82,5 @@
     "platform-overrides": {
         "php": "8.3"
     },
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }