diff --git a/composer.json b/composer.json
index 7a532f5..37bf856 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
 		"phpgt/database": "dev-master"
 	},
 	"require-dev": {
-		"phpstan/phpstan": "^1.10",
+		"phpstan/phpstan": "^2.1",
 		"phpunit/phpunit": "^10.1",
 		"phpmd/phpmd": "^2.13",
 		"squizlabs/php_codesniffer": "^3.7"
diff --git a/composer.lock b/composer.lock
index 73d35e9..b446342 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": "c33ebe4baf5d2607ac96b7b46fb812cc",
+    "content-hash": "929d8ea820a9ff27041f4a8d1275e02d",
     "packages": [
         {
             "name": "greenlion/php-sql-parser",
@@ -973,20 +973,15 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.12.27",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "3a6e423c076ab39dfedc307e2ac627ef579db162"
-            },
+            "version": "2.1.51",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/3a6e423c076ab39dfedc307e2ac627ef579db162",
-                "reference": "3a6e423c076ab39dfedc307e2ac627ef579db162",
+                "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": "*"
@@ -1027,7 +1022,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-05-21T20:51:45+00:00"
+            "time": "2026-04-21T18:22:01+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -3231,5 +3226,5 @@
     "prefer-lowest": false,
     "platform": {},
     "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }