diff --git a/ext/webidl/README.md b/ext/webidl/README.md
index ce2d661e36..cc4ccc6e98 100644
--- a/ext/webidl/README.md
+++ b/ext/webidl/README.md
@@ -3,4 +3,4 @@
 This crate implements WebIDL for Deno. It consists of infrastructure to do ECMA
 -> WebIDL conversions.
 
-Spec: https://heycam.github.io/webidl/
+Spec: https://webidl.spec.whatwg.org/