diff --git a/symfony/slack-notifier/5.0/manifest.json b/symfony/slack-notifier/5.0/manifest.json
new file mode 100644
index 00000000..f34b655c
--- /dev/null
+++ b/symfony/slack-notifier/5.0/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "#1": "SLACK_DSN=slack://TOKEN@default?channel=CHANNEL"
+    }
+}
diff --git a/symfony/slack-notifier/5.1/manifest.json b/symfony/slack-notifier/5.1/manifest.json
new file mode 100644
index 00000000..ba7f27cf
--- /dev/null
+++ b/symfony/slack-notifier/5.1/manifest.json
@@ -0,0 +1,6 @@
+{
+    "env": {
+        "#1": "See https://api.slack.com/messaging/webhooks",
+        "#2": "SLACK_DSN=slack://default/ID"
+    }
+}