diff --git a/docs/extending.md b/docs/extending.md
index c6cb5f574..09a7bd63e 100644
--- a/docs/extending.md
+++ b/docs/extending.md
@@ -94,7 +94,7 @@ You can only use this trick to tell *Mypy* that a class is actually an *attrs* c
 
 ### Pyright
 
-Generic decorator wrapping is supported in [*Pyright*](https://github.com/microsoft/pyright) via `typing.dataclass_transform` / {pep}`689`.
+Generic decorator wrapping is supported in [*Pyright*](https://github.com/microsoft/pyright) via `typing.dataclass_transform` / {pep}`681`.
 
 For a custom wrapping of the form: