diff --git a/composer.json b/composer.json
index 4174c1ee..18be9a82 100755
--- a/composer.json
+++ b/composer.json
@@ -19,6 +19,7 @@
         "php": ">=7.2.0",
         "ext-json": "*",
         "ext-gd": "*",
+        "ext-dom": "*",
         "ext-mbstring": "*",
         "ext-fileinfo": "*",