diff --git a/docs/src/intro.md b/docs/src/intro.md
index 20c7720..f6e8018 100644
--- a/docs/src/intro.md
+++ b/docs/src/intro.md
@@ -121,7 +121,7 @@ assert MyPointFeatureModel(type="Feature", geometry=Point(type="Point", coordina
 And now with constrained properties
 
 ```python
-from typing import Annotated
+from typing_extensions import Annotated
 from geojson_pydantic import Feature, Point
 from pydantic import BaseModel