diff --git a/data_platform/updater.py b/data_platform/updater.py
index e41fb4de..65c239d3 100644
--- a/data_platform/updater.py
+++ b/data_platform/updater.py
@@ -86,7 +86,8 @@ def fetch_incremental(code: str, start_date: str, end_date: str):
         days = (pd.Timestamp(end_date) - pd.Timestamp(start_date)).days + 10
         url = f"https://web.ifzq.gtimg.cn/appstock/app/fqkline/get?param={tq},day,,{days},"
         import urllib.request, json
-        with urllib.request.urlopen(url, timeout=10) as r:
+        req = urllib.request.Request(url, headers={"User-Agent": "Mozilla/5.0"})
+        with urllib.request.urlopen(req, timeout=10) as r:
             data = json.loads(r.read())
         klines = data.get("data", {}).get(tq, {}).get("day", [])
         if not klines: