diff --git a/composer.json b/composer.json
index 1c7ce97..e404e12 100644
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,7 @@
         }
     },
     "require": {
+        "php": ">=8.1",
         "guzzlehttp/guzzle": "~7.0"
     },
     "require-dev": {