diff --git a/composer.json b/composer.json
index 6737994..4faf443 100644
--- a/composer.json
+++ b/composer.json
@@ -84,6 +84,9 @@
             "phpstan/extension-installer": true,
             "dealerdirect/phpcodesniffer-composer-installer": true,
             "php-http/discovery": true
+        },
+        "platform": {
+            "php": "8.3.6"
         }
     },
     "extra": {