diff --git a/cryptoai/api/__pycache__/binance_api.cpython-313.pyc b/cryptoai/api/__pycache__/binance_api.cpython-313.pyc
index d80ba24..a073857 100644
Binary files a/cryptoai/api/__pycache__/binance_api.cpython-313.pyc and b/cryptoai/api/__pycache__/binance_api.cpython-313.pyc differ
diff --git a/cryptoai/api/binance_api.py b/cryptoai/api/binance_api.py
index 5a0879e..76bdcf0 100644
--- a/cryptoai/api/binance_api.py
+++ b/cryptoai/api/binance_api.py
@@ -84,7 +84,7 @@ class BinanceAPI:
             print(f"获取交易对大户持仓多空比时出错: {e}")
             return 0
 
-    def get_historical_klines(self, symbol: str, interval: str, start_str: Optional[str] = None, end_str: Optional[str] = None, limit: int = 150) -> pd.DataFrame:
+    def get_historical_klines(self, symbol: str, interval: str, start_str: Optional[str] = None, end_str: Optional[str] = None, limit: int = 100) -> pd.DataFrame:
         """
         获取历史K线数据
         
diff --git a/docker-compose.yml b/docker-compose.yml
index 5fc98d8..5351d8b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -29,7 +29,7 @@ services:
   cryptoai-api:
     build: .
     container_name: cryptoai-api
-    image: cryptoai-api:0.2.18
+    image: cryptoai-api:0.2.19
     restart: always
     ports:
       - "8000:8000"