diff --git a/composer.json b/composer.json
index 566de5a..1ab16c7 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
         "jangregor/phpstan-prophecy": "^1.0.0",
         "phpspec/prophecy-phpunit": "^2.0",
         "phpstan/extension-installer": "^1.2.0",
-        "phpstan/phpstan": "^1.8",
+        "phpstan/phpstan": "^1.11",
         "phpunit/phpunit": "^9.5.26",
         "squizlabs/php_codesniffer": "^3.7"
     },
diff --git a/composer.lock b/composer.lock
index 2907438..db8fdc1 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": "5f74f6ad84ba40220c69fa08272d3fd1",
+    "content-hash": "972dc9ef3b0b1de5a2951d7e55ba4cfb",
     "packages": [
         {
             "name": "fig/http-message-util",
@@ -2268,16 +2268,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.10.65",
+            "version": "1.11.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "3c657d057a0b7ecae19cb12db446bbc99d8839c6"
+                "reference": "e64220a05c1209fc856d58e789c3b7a32c0bb9a5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/3c657d057a0b7ecae19cb12db446bbc99d8839c6",
-                "reference": "3c657d057a0b7ecae19cb12db446bbc99d8839c6",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e64220a05c1209fc856d58e789c3b7a32c0bb9a5",
+                "reference": "e64220a05c1209fc856d58e789c3b7a32c0bb9a5",
                 "shasum": ""
             },
             "require": {
@@ -2320,13 +2320,9 @@
                 {
                     "url": "https://github.com/phpstan",
                     "type": "github"
-                },
-                {
-                    "url": "https://tidelift.com/funding/github/packagist/phpstan/phpstan",
-                    "type": "tidelift"
                 }
             ],
-            "time": "2024-03-23T10:30:26+00:00"
+            "time": "2024-05-31T13:53:37+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",