diff --git a/composer.json b/composer.json
index 1a0990f..b924ee0 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
     },
     "require-dev": {
         "phpstan/phpstan": "^0.12.46",
-        "phpstan/phpstan-phpunit": "^0.12.16",
+        "phpstan/phpstan-phpunit": "^0.12.16 || ^1.0.0",
         "phpstan/phpstan-strict-rules": "^0.12.5",
         "phpunit/phpunit": "^9.3",
         "squizlabs/php_codesniffer": "^3.5"