diff --git a/pyproject.toml b/pyproject.toml
index 933f1d264..2dd71b8e7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,6 +40,9 @@ include-package-data = true
 [tool.setuptools.packages.find]
 where = ["src"]
 
+[tool.setuptools.package-data]
+"*" = ["py.typed"]
+
 # the default git describe resolves to the tag `python3.6` because the current release tag is not on main
 # by adding "v" the command resolves to the alpha release of 0.7.0 which leads to the desired name spdx-tools-0.7.0
 [tool.setuptools_scm]
diff --git a/src/py.typed b/src/py.typed
new file mode 100644
index 000000000..e69de29bb