diff --git a/composer.json b/composer.json
index 60babb1..6997a74 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
         "phan/phan": "^5.4",
         "php-coveralls/php-coveralls": "^2.5",
         "phpmd/phpmd": "^2.13",
-        "phpstan/phpstan": "^1.9",
+        "phpstan/phpstan": "^1.9 || ^2.0",
         "phpunit/phpunit": "^10.0 || ^11.4",
         "squizlabs/php_codesniffer": "^3.7"
     },
diff --git a/composer.lock b/composer.lock
index 321ee81..e02ed50 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": "b38fd8114ba2cc28843d0e4db59cbf55",
+    "content-hash": "be3f3223a621458a501834aede50f5a9",
     "packages": [
         {
             "name": "php-contrib/validator",
@@ -1557,20 +1557,20 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.12.14",
+            "version": "2.1.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "e73868f809e68fff33be961ad4946e2e43ec9e38"
+                "reference": "f9adff3b87c03b12cc7e46a30a524648e497758f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e73868f809e68fff33be961ad4946e2e43ec9e38",
-                "reference": "e73868f809e68fff33be961ad4946e2e43ec9e38",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/f9adff3b87c03b12cc7e46a30a524648e497758f",
+                "reference": "f9adff3b87c03b12cc7e46a30a524648e497758f",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.2|^8.0"
+                "php": "^7.4|^8.0"
             },
             "conflict": {
                 "phpstan/phpstan-shim": "*"
@@ -1611,7 +1611,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2024-12-31T07:26:13+00:00"
+            "time": "2025-03-09T09:30:48+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -4797,7 +4797,7 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": {},
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
@@ -4807,5 +4807,5 @@
         "ext-ast": "*",
         "ext-openssl": "*"
     },
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.3.0"
 }