diff --git a/composer.json b/composer.json
index 055ea6f..f4a593f 100755
--- a/composer.json
+++ b/composer.json
@@ -31,6 +31,7 @@
         }
     },
     "require": {
+        "ext-dom": "*",
         "pimcore/pimcore": "^11.0",
         "google/apiclient": "^2.0",
         "doctrine/orm": "^2.7"