diff --git a/composer.json b/composer.json
index 9d8a9bf..068c310 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
         "psr-discovery/http-factory-implementations": "^1.2"
     },
     "require-dev": {
-        "guzzlehttp/guzzle": "^7.9",
+        "guzzlehttp/guzzle": "^7.9 || ^8.0",
         "pestphp/pest": "^3.0",
         "pestphp/pest-plugin-type-coverage": "^3.2",
         "phpstan/phpstan": "^2.0",