diff --git a/composer.json b/composer.json
index 6aa9e49..d47b908 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
     "require-dev": {
         "nette/tester": "2.4.2",
         "mockery/mockery": "1.5.0",
-        "phpstan/phpstan": "1.7.15",
+        "phpstan/phpstan": "1.8.0",
         "phpstan/phpstan-strict-rules": "1.3.0",
         "nepada/phpstan-nette-tester": "0.4.0",
         "spaze/phpstan-disallowed-calls": "2.4.0",