diff --git a/README.md b/README.md
index 196d0af..e45e8d7 100644
--- a/README.md
+++ b/README.md
@@ -148,7 +148,7 @@ Browsers without native [custom element support][support] require a [polyfill][]
 - Microsoft Edge
 
 [support]: https://caniuse.com/#feat=custom-elementsv1
-[polyfill]: https://github.com/webcomponents/custom-elements
+[polyfill]: https://github.com/webcomponents/polyfills/tree/master/packages/custom-elements
 
 ## Development