diff --git a/composer.json b/composer.json
index 123737d..b23fef5 100644
--- a/composer.json
+++ b/composer.json
@@ -55,6 +55,9 @@
         "symfony/web-profiler-bundle": "5.4.*"
     },
     "config": {
+        "allow-plugins": {
+            "symfony/flex": true
+        },
         "preferred-install": {
             "*": "dist"
         },