diff --git a/symfony/message-bird-notifier/5.3/manifest.json b/symfony/message-bird-notifier/5.3/manifest.json
new file mode 100644
index 00000000..6a23e70b
--- /dev/null
+++ b/symfony/message-bird-notifier/5.3/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "#1": "MESSAGEBIRD_DSN=messagebird://TOKEN@default?from=FROM"
+    }
+}