diff --git a/composer.json b/composer.json
index 261eba031..b52187959 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
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     "require-dev": {
         "doctrine/coding-standard": "^9.0.0",
-        "phpstan/phpstan": "0.12.98",
+        "phpstan/phpstan": "0.12.99",
         "phpunit/phpunit": "^9.5.9",
         "vimeo/psalm": "^4.10.0",
         "roave/infection-static-analysis-plugin": "^1.9.0",
diff --git a/composer.lock b/composer.lock
index 1c0340672..62c040fe4 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": "b4f46d9f06bb7da0785d6e7b5ef50b69",
+    "content-hash": "1df7aa28fe0849aa0f3b93c75ffbc753",
     "packages": [
         {
             "name": "jetbrains/phpstorm-stubs",
@@ -1968,16 +1968,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.98",
+            "version": "0.12.99",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "3bb7cc246c057405dd5e290c3ecc62ab51d57e00"
+                "reference": "b4d40f1d759942f523be267a1bab6884f46ca3f7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/3bb7cc246c057405dd5e290c3ecc62ab51d57e00",
-                "reference": "3bb7cc246c057405dd5e290c3ecc62ab51d57e00",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/b4d40f1d759942f523be267a1bab6884f46ca3f7",
+                "reference": "b4d40f1d759942f523be267a1bab6884f46ca3f7",
                 "shasum": ""
             },
             "require": {
@@ -2008,7 +2008,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/0.12.98"
+                "source": "https://github.com/phpstan/phpstan/tree/0.12.99"
             },
             "funding": [
                 {
@@ -2028,7 +2028,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-09-02T12:33:01+00:00"
+            "time": "2021-09-12T20:09:55+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",