diff --git a/composer.json b/composer.json
index 3a66d52..72b29d8 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
         "friendsofphp/php-cs-fixer": "^3.0",
         "guzzlehttp/guzzle": "^6.3|^7.0",
         "mockery/mockery": "^1.3",
-        "orchestra/testbench": "^5.0|^6.0|^7.0",
+        "orchestra/testbench": "8.5.5",
         "phpunit/phpunit": "^9.1"
     },
     "autoload": {