diff --git a/MANIFEST.in b/MANIFEST.in
index 897ffeb..d850fb8 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1 +1,2 @@
 include requirements/common.txt
+include datamaxi/py.typed
diff --git a/datamaxi/py.typed b/datamaxi/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/pyproject.toml b/pyproject.toml
index ab49761..971bd9f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,9 @@ async = ["httpx>=0.27,<1"]
 dependencies = {file = ["requirements/common.txt"]}
 version = {attr = "datamaxi.__version__.__version__"}
 
+[tool.setuptools.package-data]
+datamaxi = ["py.typed"]
+
 [project.urls]
 Homepage = "https://github.com/bisonai/datamaxi-python"
 Issues = "https://github.com/bisonai/datamaxi-python/issues"