diff --git a/composer.json b/composer.json
index 82fbbb8..dd66d70 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
     "require-dev": {
         "phpunit/phpunit": "^8.2 || ^9.2",
         "mockery/mockery": "^1.2",
-        "phpstan/phpstan": "^0.12",
+        "phpstan/phpstan": "^0.12 || ^1.0",
         "ext-simplexml": "*",
         "psalm/phar": "^4.15 || ^5.0"
     },