diff --git a/composer.json b/composer.json
index 42a6191..e9e77c7 100644
--- a/composer.json
+++ b/composer.json
@@ -47,7 +47,9 @@
         "drupal/twigsuggest": "dev-8.x-1.x as 1.x-dev",
         "drupal/webform": "^5.4",
         "drush/drush": "^9.0",
-        "drutopia/drutopia": "dev-8.x-1.x"
+        "drutopia/drutopia": "dev-8.x-1.x",
+        "wikimedia/composer-merge-plugin": "^1.4",
+        "zaporylie/composer-drupal-optimizations": "^1.0"
     },
     "repositories": {
         "drupal": {