diff --git a/composer.json b/composer.json
index 50a2e9e..2e9637a 100644
--- a/composer.json
+++ b/composer.json
@@ -10,6 +10,7 @@
     "require": {
         "composer/installers": "*",
         "drupal/superfish": "*",
+        "drupal/smtp": "*",
         "drupal/paragraphs_collapsible": "*"
     }
 }