diff --git a/content/identity-service-api.md b/content/identity-service-api.md
index 81272b10..65369b3e 100644
--- a/content/identity-service-api.md
+++ b/content/identity-service-api.md
@@ -285,7 +285,7 @@ the client has made an appropriate request to `/hash_details` first.
 ### Security considerations
 
 {{% boxes/note %}}
-[MSC2134](https://github.com/matrix-org/matrix-spec-proposals/pull/2134) has much
+[MSC2134](https://github.com/matrix-org/matrix-spec-proposals/blob/main/proposals/2134-identity-hash-lookup.md) has much
 more information about the security considerations made for this section
 of the specification. This section covers the high-level details for why
 the specification is the way it is.