diff --git a/composer.json b/composer.json
index 03fbd2d08..8096714b0 100644
--- a/composer.json
+++ b/composer.json
@@ -89,6 +89,7 @@
         "sort-packages": true,
         "allow-plugins": {
             "composer/package-versions-deprecated": true,
+            "php-http/discovery": false,
             "phpstan/extension-installer": true
         }
     },