diff --git a/libstdc++-v3/doc/html/manual/policy_data_structures.html b/libstdc++-v3/doc/html/manual/policy_data_structures.html
index 45e07814184..ba140809bbe 100644
--- a/libstdc++-v3/doc/html/manual/policy_data_structures.html
+++ b/libstdc++-v3/doc/html/manual/policy_data_structures.html
@@ -1037,7 +1037,7 @@
 	  </span>. </span><span class="publisher"><span class="publishername">
 	  Addison-Wesley Publishing Company
 	. </span></span></p></div><div class="biblioentry"><a id="biblio.kt99fat_heaps"></a><p>[biblio.kt99fat_heaps] <span class="title"><em>
-	<a class="link" href="https://www.cs.princeton.edu/research/techreps/TR-597-99" target="_top">
+	<a class="link" href="https://www.cs.princeton.edu/research/techreps/293" target="_top">
 	  New Heap Data Structures
 	</a>
       </em>. </span><span class="date">
@@ -1185,7 +1185,7 @@
 	    </span>. </span><span class="publisher"><span class="publishername">
 	  Addison-Wesley Publishing Company
 	. </span></span></p></div><div class="biblioentry"><a id="biblio.nelson96stlpq"></a><p>[biblio.nelson96stlpq] <span class="title"><em>
-	<a class="link" href="https://marknelson.us/posts/1996/01/01/priority-queues.html" target="_top">Priority Queues and the STL
+	<a class="link" href="https://web.archive.org/web/20240806213010/https://marknelson.us/posts/1996/01/01/priority-queues.html" target="_top">Priority Queues and the STL
 	</a>
       </em>. </span><span class="date">
 	January 1996
diff --git a/libstdc++-v3/doc/xml/manual/policy_data_structures_biblio.xml b/libstdc++-v3/doc/xml/manual/policy_data_structures_biblio.xml
index 1450b8fc000..928598d33c6 100644
--- a/libstdc++-v3/doc/xml/manual/policy_data_structures_biblio.xml
+++ b/libstdc++-v3/doc/xml/manual/policy_data_structures_biblio.xml
@@ -737,7 +737,7 @@
     <biblioentry xml:id="biblio.kt99fat_heaps">
       <title>
 	<link xmlns:xlink="http://www.w3.org/1999/xlink"
-	      xlink:href="https://www.cs.princeton.edu/research/techreps/TR-597-99">
+	      xlink:href="https://www.cs.princeton.edu/research/techreps/293">
 	  New Heap Data Structures
 	</link>
       </title>
@@ -1138,7 +1138,7 @@
     <biblioentry xml:id="biblio.nelson96stlpq">
       <title>
 	<link xmlns:xlink="http://www.w3.org/1999/xlink"
-	      xlink:href="https://marknelson.us/posts/1996/01/01/priority-queues.html">Priority Queues and the STL
+	      xlink:href="https://web.archive.org/web/20240806213010/https://marknelson.us/posts/1996/01/01/priority-queues.html">Priority Queues and the STL
 	</link>
       </title>
       <date>