diff --git a/symfony/mercure-notifier/5.3/manifest.json b/symfony/mercure-notifier/5.3/manifest.json
index c3d994ef..099d7958 100644
--- a/symfony/mercure-notifier/5.3/manifest.json
+++ b/symfony/mercure-notifier/5.3/manifest.json
@@ -1,5 +1,5 @@
 {
     "env": {
-        "#1": "MERCURE_DSN=mercure://mercure.hub.default.publisher"
+        "#1": "MERCURE_DSN=mercure://default"
     }
 }