diff --git a/pyproject.toml b/pyproject.toml
index e687f4bcf76..58c2464bcad 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,6 +33,7 @@ classifiers = [
   "Topic :: Multimedia :: Graphics :: Capture :: Screen Capture",
   "Topic :: Multimedia :: Graphics :: Graphics Conversion",
   "Topic :: Multimedia :: Graphics :: Viewers",
+  "Typing :: Typed",
 ]
 dynamic = [
   "version",
diff --git a/src/PIL/py.typed b/src/PIL/py.typed
new file mode 100644
index 00000000000..e69de29bb2d