diff --git a/InquirerPy/py.typed b/InquirerPy/py.typed
new file mode 100644
index 0000000..e1d46c5
--- /dev/null
+++ b/InquirerPy/py.typed
@@ -0,0 +1 @@
+# Marker file for PEP 561.  The InquirerPy package uses inline types.
diff --git a/pyproject.toml b/pyproject.toml
index b201dc2..435343a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,6 +28,7 @@ classifiers = [
 packages = [
   {include = "InquirerPy"}
 ]
+include = ["InquirerPy/py.typed"]
 
 [tool.poetry.dependencies]
 python = "^3.7"