diff --git a/composer.json b/composer.json
index 483713e..80b29f2 100644
--- a/composer.json
+++ b/composer.json
@@ -36,6 +36,7 @@
         "drupal/console": "~1.0",
         "drupal/core": "~8.5",
         "drupal/commerce": "~2.0",
+        "drush/drush": "^9.0.0",
         "drupal/search_api": "~1.0",
         "drupal/swiftmailer": "~1.0",
         "drupal/token": "~1.0",