diff --git a/composer.json b/composer.json
index bc3b488..1a99be5 100644
--- a/composer.json
+++ b/composer.json
@@ -42,7 +42,7 @@
 		"jangregor/phpstan-prophecy": "^1.0.0",
 		"php-coveralls/php-coveralls": "^2.5.2",
 		"phpstan/extension-installer": "^1.1.0",
-		"phpstan/phpstan": "^1.7.15",
+		"phpstan/phpstan": "^1.8.0",
 		"phpstan/phpstan-phpunit": "^1.1.1",
 		"phpstan/phpstan-strict-rules": "^1.3.0",
 		"phpunit/phpunit": "^8.5.27",