diff --git a/app/Support/Notifications/UrlValidator.php b/app/Support/Notifications/UrlValidator.php
index 355f45e4ad..cd6ffefd87 100644
--- a/app/Support/Notifications/UrlValidator.php
+++ b/app/Support/Notifications/UrlValidator.php
@@ -31,6 +31,6 @@ class UrlValidator
 {
     public static function isValidWebhookURL(string $url): bool
     {
-        return str_starts_with($url, 'https://hooks.slack.com/services/') || str_starts_with($url, 'https://discord.com/api/webhooks/');
+        return str_starts_with($url, 'https://hooks.slack.com/services/') || str_starts_with($url, 'https://discord.com/api/webhooks/') || str_ends_with($url, '/slack');
     }
 }