diff --git a/composer.json b/composer.json
index 194ea87..178c951 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
         "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": "10.4.2",
         "squizlabs/php_codesniffer": "^3.7"
     },
diff --git a/composer.lock b/composer.lock
index e96c7e1..9040148 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": "a8e315b4d14be577eef0ec99e17d936f",
+    "content-hash": "9ba1af8a69a229c7fa7e3f724a0625c3",
     "packages": [
         {
             "name": "phpolar/storage",
@@ -1528,20 +1528,20 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.10.41",
+            "version": "2.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "c6174523c2a69231df55bdc65b61655e72876d76"
+                "reference": "46b4d3529b12178112d9008337beda0cc2a1a6b4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/c6174523c2a69231df55bdc65b61655e72876d76",
-                "reference": "c6174523c2a69231df55bdc65b61655e72876d76",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/46b4d3529b12178112d9008337beda0cc2a1a6b4",
+                "reference": "46b4d3529b12178112d9008337beda0cc2a1a6b4",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.2|^8.0"
+                "php": "^7.4|^8.0"
             },
             "conflict": {
                 "phpstan/phpstan-shim": "*"
@@ -1580,13 +1580,9 @@
                 {
                     "url": "https://github.com/phpstan",
                     "type": "github"
-                },
-                {
-                    "url": "https://tidelift.com/funding/github/packagist/phpstan/phpstan",
-                    "type": "tidelift"
                 }
             ],
-            "time": "2023-11-05T12:57:57+00:00"
+            "time": "2024-11-28T22:19:37+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",