diff --git a/composer.json b/composer.json
index bf6e830..90074ec 100644
--- a/composer.json
+++ b/composer.json
@@ -63,7 +63,7 @@
         "drupal/wysiwyg_linebreaks": "^1.9",
         "drush/drush": "^9.0",
         "drutopia/drutopia": "^1.0-beta1",
-        "wikimedia/composer-merge-plugin": "^1.4",
+        "wikimedia/composer-merge-plugin": "^2.0",
         "zaporylie/composer-drupal-optimizations": "^1.0"
     },
     "require-dev": {