diff --git a/composer.json b/composer.json
index 5b4d27d..229ad5f 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     },
     "require-dev": {
         "nette/tester": "2.4.1",
-        "phpstan/phpstan": "1.1.1",
+        "phpstan/phpstan": "1.2.0",
         "phpstan/phpstan-strict-rules": "1.0.0",
         "phpstan/phpstan-nette": "1.0.0",
         "nepada/phpstan-nette-tester": "0.4.0",