diff --git a/Dockerfile b/Dockerfile
index bf9c98b..6db0a58 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,5 +13,7 @@ RUN pip install --no-cache-dir flask
 # 设置环境变量，指定 Flask 应用入口文件
 ENV FLASK_APP=app.py
 
+EXPOSE 5000
+
 # 声明启动时执行的命令
 CMD ["flask", "run", "--host=0.0.0.0", "--port=5000", "--without-threads"]