diff --git a/composer.json b/composer.json
index bc5bf4f..b68b3d1 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,6 @@
 {
     "name": "sanduhrs/php-bigbluebutton",
+    "description": "",
     "type": "library",
     "license": "GPL-3.0-or-later",
     "authors": [
@@ -9,6 +10,8 @@
         }
     ],
     "require": {
+        "ext-SimpleXML": "*",
+        "ext-json": "*",
         "php" : "^5.6 || ^7.0",
         "guzzlehttp/guzzle": "^6.2",
         "ramsey/uuid": "^3.4"