diff --git a/composer.json b/composer.json
index f81a7510b941be15b9acfe4e26ab6aad041eb965..731befeb7f52e05c7d44effc3ee3aa7f80e7de95 100644
--- a/composer.json
+++ b/composer.json
@@ -6,5 +6,8 @@
   "license": "GPL-2.0-or-later",
   "require": {
     "php": ">=8.1"
+  },
+  "require-dev": {
+    "drupal/config_split": "^2.0"
   }
 }