diff --git a/airflow-mcp-server/pyproject.toml b/airflow-mcp-server/pyproject.toml
index c3514ef..25e6098 100644
--- a/airflow-mcp-server/pyproject.toml
+++ b/airflow-mcp-server/pyproject.toml
@@ -31,6 +31,13 @@ dev = [
 requires = ["hatchling"]
 build-backend = "hatchling.build"
 
+[tool.hatch.build.targets.sdist]
+exclude = [
+    "*",
+    "!src/**",
+    "!pyproject.toml"
+]
+
 [tool.pytest.ini_options]
 pythonpath = ["src"]
 asyncio_mode = "strict"