diff --git a/composer.json b/composer.json
index 402d854..325fbda 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^2.19.3",
         "infection/infection": "^0.20 || ^0.21",
-        "phpstan/phpstan": "^0.12.93",
+        "phpstan/phpstan": "^1.4.6",
         "phpunit/phpunit": "^9.5",
         "vimeo/psalm": "^4.21"
     },
diff --git a/composer.lock b/composer.lock
index 626eb91..e59abe9 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": "006f060a465039152ba8f1a866d1e64d",
+    "content-hash": "b762b31504a3e66463c476e709ab6a98",
     "packages": [],
     "packages-dev": [
         {
@@ -1879,16 +1879,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.93",
+            "version": "1.4.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "7b7602f05d340ffa418c59299f8c053ac6c3e7ea"
+                "reference": "8a7761f1c520e0dad6e04d862fdc697445457cfe"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/7b7602f05d340ffa418c59299f8c053ac6c3e7ea",
-                "reference": "7b7602f05d340ffa418c59299f8c053ac6c3e7ea",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/8a7761f1c520e0dad6e04d862fdc697445457cfe",
+                "reference": "8a7761f1c520e0dad6e04d862fdc697445457cfe",
                 "shasum": ""
             },
             "require": {
@@ -1904,7 +1904,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "0.12-dev"
+                    "dev-master": "1.4-dev"
                 }
             },
             "autoload": {
@@ -1919,7 +1919,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/0.12.93"
+                "source": "https://github.com/phpstan/phpstan/tree/1.4.6"
             },
             "funding": [
                 {
@@ -1939,7 +1939,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-07-20T10:49:53+00:00"
+            "time": "2022-02-06T12:56:13+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",