diff --git a/legacy/tools/composer.json b/legacy/tools/composer.json
index 96b9bd134..10565f8a4 100644
--- a/legacy/tools/composer.json
+++ b/legacy/tools/composer.json
@@ -1,5 +1,5 @@
 {
-  "require": {
+  "require-dev": {
     "php": "^7.4",
     "friendsofphp/php-cs-fixer": "<3.53.1"
   }