diff --git a/composer.10.json b/composer.10.json
index 8309f7e..0ac5b1a 100644
--- a/composer.10.json
+++ b/composer.10.json
@@ -33,7 +33,8 @@
             "oomphinc/composer-installers-extender": true,
             "phpstan/extension-installer": true,
             "php-http/discovery": true,
-            "simplesamlphp/composer-module-installer": true,
+            "simplesamlphp/composer-module-installer": false,
+            "simplesamlphp/composer-xmlprovider-installer": false,
             "tbachert/spi": true
         }
     },