diff --git a/composer.json b/composer.json
index 09f547fb..9f3f2048 100644
--- a/composer.json
+++ b/composer.json
@@ -181,7 +181,8 @@
     },
     "extra": {
         "symfony": {
-            "allow-contrib": true
+            "allow-contrib": true,
+            "require": "6.3.*"
         }
     }
 }