diff --git a/intropy/py.typed b/intropy/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/pyproject.toml b/pyproject.toml
index d0fa047..a259b58 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,6 +39,9 @@ version = { attr = "intropy.__version__" }
 include = ["intropy"]
 exclude = ["{{cookiecutter.project_slug}}*", "tests*", "hooks*"]
 
+[tool.setuptools.package-data]
+intropy = ["py.typed"]
+
 [tool.pytest.ini_options]
 pythonpath = ["."]
 required_plugins = ["pytest-cov", "pytest-cookies"]
diff --git a/{{cookiecutter.project_slug}}/pyproject.toml b/{{cookiecutter.project_slug}}/pyproject.toml
index 191c33e..01093de 100644
--- a/{{cookiecutter.project_slug}}/pyproject.toml
+++ b/{{cookiecutter.project_slug}}/pyproject.toml
@@ -71,7 +71,7 @@ include = ["{{ cookiecutter.project_slug }}*"]
 exclude = ["data*", "tests*"]
 
 [tool.setuptools.package-data]
-{{ cookiecutter.project_slug }} = ["*.json", "*.yaml", "*.yml", "*.txt"]
+{{ cookiecutter.project_slug }} = ["*.json", "*.yaml", "*.yml", "*.txt", "py.typed"]
 
 [tool.pytest.ini_options]
 pythonpath = ["."]
diff --git a/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/py.typed b/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/py.typed
new file mode 100644
index 0000000..e69de29