diff --git a/pyproject.toml b/pyproject.toml
index 80db556..333c51f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,6 +17,7 @@ classifiers = [
     "Programming Language :: Python :: 3",
     "Topic :: Text Processing",
     "Topic :: Text Processing :: Filters",
+    "Typing :: Typed",
 ]
 requires-python = ">=3.11"
 dynamic = ["version"]
diff --git a/src/stop_words/py.typed b/src/stop_words/py.typed
new file mode 100644
index 0000000..e69de29