diff --git a/cucyuqing/cmd/es-sync.py b/cucyuqing/cmd/es-sync.py
index 3eb2b1a..dd0de20 100644
--- a/cucyuqing/cmd/es-sync.py
+++ b/cucyuqing/cmd/es-sync.py
@@ -66,9 +66,13 @@ async def fetch(interval: ESInterval, size=1000) -> AsyncIterable[dict]:
     # 这里使用递归
     if len(docs) == size:
         print("继续请求下一页数据")
+        start_time = parse_unixtime(docs[-1]["crawled_at"])
+        if start_time == interval.end_time:
+            print("已经到达时间段末尾，停止请求", start_time)
+            return
         async for doc in fetch(
             ESInterval(
-                start_time=parse_unixtime(docs[-1]["crawled_at"]),
+                start_time=start_time,
                 end_time=interval.end_time,
             ),
             size,