diff --git a/Dockerfile b/Dockerfile
index a8d5ac587174b416b581e4ee719c13a1774423ed..cdbda8fa8a1a0276e731bffb7a4a80799ae45c6b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3
+FROM python:3.9
 
 # 安装系统依赖和 Allure 命令行工具
 RUN apt-get install -y unzip wget