diff --git a/composer.json b/composer.json
index 1480f71..1a4c590 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
 	},
 
 	"require-dev": {
-		"phpstan/phpstan": "^1.10",
+		"phpstan/phpstan": "^1.10 || ^2.0",
 		"phpunit/phpunit": "^10.3",
 		"phpmd/phpmd": "^2.13",
 		"squizlabs/php_codesniffer": "^3.7"
diff --git a/composer.lock b/composer.lock
index 8de76c2..a9c7c39 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": "77c3db9bec97a022b8b757de1def05d2",
+    "content-hash": "998b6836623855844df3805327c716ee",
     "packages": [],
     "packages-dev": [
         {
@@ -536,15 +536,15 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.12.33",
+            "version": "2.1.51",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/37982d6fc7cbb746dda7773530cda557cdf119e1",
-                "reference": "37982d6fc7cbb746dda7773530cda557cdf119e1",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/dc3b523c45e714c70de2ac5113b958223b55dc59",
+                "reference": "dc3b523c45e714c70de2ac5113b958223b55dc59",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.2|^8.0"
+                "php": "^7.4|^8.0"
             },
             "conflict": {
                 "phpstan/phpstan-shim": "*"
@@ -585,7 +585,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2026-02-28T20:30:03+00:00"
+            "time": "2026-04-21T18:22:01+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",