diff --git a/app/summarizer.py b/app/summarizer.py
index 49f6e7c..a9a7df1 100644
--- a/app/summarizer.py
+++ b/app/summarizer.py
@@ -42,7 +42,7 @@ SYSTEM_PROMPT = """너는 뉴스/경제 유튜브 영상을 시청하고 핵심
 
 def summarize(transcript: str, title: str) -> dict:
     message = client.messages.create(
-        model="claude-sonnet-4-20250514",
+        model="claude-sonnet-4-6",
         max_tokens=2048,
         system=SYSTEM_PROMPT,
         messages=[