diff --git a/composer.json b/composer.json
index b3fd792..072a262 100644
--- a/composer.json
+++ b/composer.json
@@ -30,6 +30,7 @@
     "imbo/imbo-coding-standard": "^2.0",
     "phpstan/extension-installer": "^1.4",
     "phpstan/phpstan": "^2.1",
+    "phpstan/phpstan-deprecation-rules": "^2.0",
     "phpstan/phpstan-phpunit": "^2.0",
     "phpunit/phpunit": "^11.5",
     "slim/psr7": "^1.3",
diff --git a/composer.lock b/composer.lock
index 0357a16..ab0b723 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": "df380338f2316c396f18b57456fc07af",
+    "content-hash": "19e29faee7a03b8e460760610cebfca7",
     "packages": [
         {
             "name": "beberlei/assert",
@@ -3015,6 +3015,53 @@
             ],
             "time": "2025-01-05T16:43:48+00:00"
         },
+        {
+            "name": "phpstan/phpstan-deprecation-rules",
+            "version": "2.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpstan/phpstan-deprecation-rules.git",
+                "reference": "1cc1259cb91ee4cfbb5c39bca9f635f067c910b4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpstan/phpstan-deprecation-rules/zipball/1cc1259cb91ee4cfbb5c39bca9f635f067c910b4",
+                "reference": "1cc1259cb91ee4cfbb5c39bca9f635f067c910b4",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.4 || ^8.0",
+                "phpstan/phpstan": "^2.0"
+            },
+            "require-dev": {
+                "php-parallel-lint/php-parallel-lint": "^1.2",
+                "phpstan/phpstan-phpunit": "^2.0",
+                "phpunit/phpunit": "^9.6"
+            },
+            "type": "phpstan-extension",
+            "extra": {
+                "phpstan": {
+                    "includes": [
+                        "rules.neon"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PHPStan\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "PHPStan rules for detecting usage of deprecated classes, methods, properties, constants and traits.",
+            "support": {
+                "issues": "https://github.com/phpstan/phpstan-deprecation-rules/issues",
+                "source": "https://github.com/phpstan/phpstan-deprecation-rules/tree/2.0.1"
+            },
+            "time": "2024-11-28T21:56:36+00:00"
+        },
         {
             "name": "phpstan/phpstan-phpunit",
             "version": "2.0.3",