diff --git a/mcp-server-demo/pyproject.toml b/mcp-server-demo/pyproject.toml
index 22292bd..5bb345f 100644
--- a/mcp-server-demo/pyproject.toml
+++ b/mcp-server-demo/pyproject.toml
@@ -1,3 +1,7 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
 [project]
 name = "mcp-server-demo"
 version = "0.1.0"
@@ -12,3 +16,6 @@ dependencies = [
     "openpyxl>=3.1.0",
     "xlrd>=2.0.1",
 ]
+
+[tool.setuptools]
+py-modules = ["server", "excel_analyzer"]