diff --git a/PKG-INFO b/PKG-INFO
index e8bf6532..ec3a30b2 100644
--- a/PKG-INFO
+++ b/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: tqsdk
-Version: 3.5.6
+Version: 3.5.7
 Summary: TianQin SDK
 Home-page: https://www.shinnytech.com/tqsdk
 Author: TianQin
diff --git a/doc/conf.py b/doc/conf.py
index 82c82d90..fcf079fe 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -48,9 +48,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = u'3.5.6'
+version = u'3.5.7'
 # The full version, including alpha/beta/rc tags.
-release = u'3.5.6'
+release = u'3.5.7'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/doc/version.rst b/doc/version.rst
index fab24a34..1ae89324 100644
--- a/doc/version.rst
+++ b/doc/version.rst
@@ -2,6 +2,11 @@
 
 版本变更
 =============================
+3.5.7 (2024/04/23)
+
+* 修复：:py:meth:`~tqsdk.TqApi.get_kline_data_series`、:py:meth:`~tqsdk.TqApi.get_tick_data_series` 接口在指定时间段没有数据时报错
+
+
 3.5.6 (2024/04/11)
 
 * 修复：:py:meth:`~tqsdk.TqApi.query_quotes` 函数无法查询广州期货交易所 GFEX 的主连合约和主力合约
diff --git a/setup.py b/setup.py
index ce414532..94ea44b2 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setuptools.setup(
     name='tqsdk',
-    version="3.5.6",
+    version="3.5.7",
     description='TianQin SDK',
     author='TianQin',
     author_email='tianqincn@gmail.com',
diff --git a/tqsdk/__version__.py b/tqsdk/__version__.py
index f59ba749..aa89269e 100644
--- a/tqsdk/__version__.py
+++ b/tqsdk/__version__.py
@@ -1 +1 @@
-__version__ = '3.5.6'
+__version__ = '3.5.7'
diff --git a/tqsdk/data_series.py b/tqsdk/data_series.py
index 255108a0..3761e89b 100644
--- a/tqsdk/data_series.py
+++ b/tqsdk/data_series.py
@@ -102,7 +102,7 @@ async def _run(self):
                 DataSeries._assert_rangeset_asce_sorted(rangeset_id)
                 DataSeries._assert_rangeset_asce_sorted(rangeset_dt)
 
-            assert len(rangeset_id) == len(rangeset_dt) > 0
+            assert len(rangeset_id) == len(rangeset_dt)  # rangeset_id 和 rangeset_dt 的长度应该相等, 且一一对应，有可能长度都为 0 ，即没有下载任何数据
 
             # 查找用户请求时间段与已有数据时间段的交集
             target_rangeset_dt = _rangeset_intersection([(self._start_dt_nano, self._end_dt_nano)], rangeset_dt)