diff --git a/index.html b/index.html
index 68cac5d..8f3b00f 100644
--- a/index.html
+++ b/index.html
@@ -121,12 +121,12 @@ <h2>
       </h2>
       <p>
         The concepts <dfn><a href=
-        "https://www.w3.org/TR/html5/browsers.html#top-level-browsing-context">top-level
+        "https://html.spec.whatwg.org/multipage/browsers.html#top-level-browsing-context">top-level
         browsing context</a></dfn> and <dfn><a href=
-        "https://www.w3.org/TR/html5/webappapis.html#spin-the-event-loop">spin
+        "https://html.spec.whatwg.org/multipage/webappapis.html#spin-the-event-loop">spin
         the event loop</a></dfn> and the <dfn><a href=
-        "https://www.w3.org/TR/html5/webappapis.html#the-navigator-object"><code>
-        Navigator</code></a></dfn> interface are defined in [[!HTML5]].
+        "https://html.spec.whatwg.org/multipage/system-state.html#the-navigator-object"><code>
+        Navigator</code></a></dfn> interface are defined in [[!HTML]].
       </p>
     </section>
     <section>