diff --git a/composer.json b/composer.json
index c4dc73ccfe4..34055f384ea 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
         "nette/utils": "^3.2",
         "nikic/php-parser": "^4.10.4",
         "phpstan/phpdoc-parser": "^0.4.9",
-        "phpstan/phpstan": "^0.12.64",
+        "phpstan/phpstan": "^0.12.64, <0.12.70",
         "phpstan/phpstan-phpunit": "^0.12.17",
         "psr/simple-cache": "^1.0",
         "sebastian/diff": "^4.0",