diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40c4551..a363b01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 1.0.8版本
+
+1. 使用zoneinfo替换pytz库
+2. 调整安装脚本setup.cfg，添加Python版本限制
+
 # 1.0.7版本
 
 1. 移除反向合约支持
diff --git a/README.md b/README.md
index e53d6f5..e084dc9 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 </p>
 
 <p align="center">
-    <img src ="https://img.shields.io/badge/version-1.0.7-blueviolet.svg"/>
+    <img src ="https://img.shields.io/badge/version-1.0.8-blueviolet.svg"/>
     <img src ="https://img.shields.io/badge/platform-windows|linux|macos-yellow.svg"/>
     <img src ="https://img.shields.io/badge/python-3.7|3.8|3.9|3.10-blue.svg" />
     <img src ="https://img.shields.io/github/license/vnpy/vnpy.svg?color=orange"/>
@@ -17,7 +17,7 @@
 
 ## 安装
 
-安装环境推荐基于3.0.0版本以上的【[**VeighNa Studio**](https://www.vnpy.com)】。
+安装环境推荐基于3.3.0版本以上的【[**VeighNa Studio**](https://www.vnpy.com)】。
 
 直接使用pip命令：
 
diff --git a/setup.cfg b/setup.cfg
index 0f9adf1..5e81c7c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = vnpy_ctabacktester
-version = 1.0.7
+version = 1.0.8
 url = https://www.vnpy.com
 license = MIT
 author = Xiaoyou Chen
@@ -30,6 +30,7 @@ classifiers =
 [options]
 packages = find:
 zip_safe = False
+python_requires = >=3.7
 install_requires =
     vnpy_ctastrategy
 
diff --git a/vnpy_ctabacktester/ui/widget.py b/vnpy_ctabacktester/ui/widget.py
index d681a20..07bde3d 100644
--- a/vnpy_ctabacktester/ui/widget.py
+++ b/vnpy_ctabacktester/ui/widget.py
@@ -438,7 +438,7 @@ def start_downloading(self) -> None:
             start_date.month(),
             start_date.day(),
         )
-        start: datetime = DB_TZ.localize(start)
+        start: datetime = start.replace(tzinfo=DB_TZ)
 
         end: datetime = datetime(
             end_date.year(),
@@ -448,7 +448,7 @@ def start_downloading(self) -> None:
             59,
             59,
         )
-        end: datetime = DB_TZ.localize(end)
+        end: datetime = end.replace(tzinfo=DB_TZ)
 
         self.backtester_engine.start_downloading(
             vt_symbol,