diff --git a/composer.json b/composer.json
index 54e0115..37d9f2e 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "3.4.0",
         "nazar-pc/phpt-tests-runner": "^1.4.0",
-        "phpstan/phpstan": "1.10.6"
+        "phpstan/phpstan": "1.10.50"
     },
     "scripts": {
         "check-style": "php-cs-fixer fix --dry-run -vv",