diff --git a/classes/class04/meta.json b/classes/class04/meta.json
index 4332ad4..2034eea 100644
--- a/classes/class04/meta.json
+++ b/classes/class04/meta.json
@@ -3,5 +3,5 @@
     "id": "class-04",
     "description": "The fourth class focuses on detecting intruders in your server. Please open the Google document provided to all registered students and follow the document.",
     "google_doc_url": "https://docs.google.com/document/d/1olPwIt3AWtyfj4uFJAIsQxkTFyWnxNtHCXhA0uMc1PI",
-    "yt_recording_url": ""
+    "yt_recording_url": "https://www.youtube.com/embed/VTqs9kEdBOM?si=qqHIfO3Qp6JipC81"
 }