diff --git a/README.md b/README.md
index c2b2a6b..6323dd5 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ use Nwb\MultiDownloaderClient\MultiDownloaderClient;
 
 $client = new MultiDownloaderClient([
     'apiKey' => '',
+    'apiSecret' => '',
     'url' => '',
 ])
 ```