diff --git a/README.md b/README.md
index f36c29e..9e4f850 100755
--- a/README.md
+++ b/README.md
@@ -327,7 +327,7 @@ $api->transmit([
   'item' => [
     'type'    => 'message',
     'role'    => 'user',
-    'content' => $content,
+    'content' => [['type' => 'input_text', 'text' => $message]],
   ]
 ]);