diff --git a/composer.json b/composer.json
index 40683ea..a7ec427 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
 	],
 	"require": {
 		"php": "^7.2 || ^8.0",
-		"phpstan/phpstan": "^1.8.11"
+		"phpstan/phpstan": "^1.9.0"
 	},
 	"conflict": {
 		"phpunit/phpunit": "<7.0"
diff --git a/phpstan.neon b/phpstan.neon
index d1a581a..2b8fa1a 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -8,20 +8,3 @@ includes:
 parameters:
 	excludePaths:
 		- tests/*/data/*
-
-services:
-	scopeIsInClass:
-		class: PHPStan\Internal\ScopeIsInClassTypeSpecifyingExtension
-		arguments:
-			isInMethodName: isInClass
-			removeNullMethodName: getClassReflection
-		tags:
-			- phpstan.typeSpecifier.methodTypeSpecifyingExtension
-
-	scopeIsInTrait:
-		class: PHPStan\Internal\ScopeIsInClassTypeSpecifyingExtension
-		arguments:
-			isInMethodName: isInTrait
-			removeNullMethodName: getTraitReflection
-		tags:
-			- phpstan.typeSpecifier.methodTypeSpecifyingExtension