diff --git a/faq.html b/faq.html
index 50aa08d68..f0fbdc5d2 100644
--- a/faq.html
+++ b/faq.html
@@ -982,7 +982,7 @@ and
 itself.</p>
 <p>Do remember that if your submission requires different filenames, then you
 <strong>MUST</strong> make a <strong>COPY</strong> of them in your <code>Makefile</code>. See also
-<a href="next/rules.html#rule-5---purity">Rule 5 - Purity</a>.</p>
+<a href="next/rules.html#rule-5---integrity">Rule 5 - Integrity</a>.</p>
 <p>Jump to: <a href="#">top</a></p>
 <hr style="width:50%;text-align:left;margin-left:0">
 <hr style="width:50%;text-align:left;margin-left:0">
@@ -1325,7 +1325,7 @@ modes, it also verifies them after the fact and if they are not correct it is an
 <p>If you do need different permissions, then see the
 FAQ on “<a href="#file_perms">file permissions</a>”. Also keep in mind
 <a href="next/rules.html#rule-4---files">Rule 4 - Files</a>,
-<a href="next/rules.html#rule-5---purity">Rule 5 - Purity</a>,
+<a href="next/rules.html#rule-5---integrity">Rule 5 - Integrity</a>,
 and
 <a href="next/rules.html#rule-16---anonymous">Rule 16 - Anonymous</a>.</p>
 <p>The <code>txzchk(1)</code> tool will also verify file/directory permissions (and many other
diff --git a/next/rules.html b/next/rules.html
index 80e31a077..f53a4100e 100644
--- a/next/rules.html
+++ b/next/rules.html
@@ -479,7 +479,7 @@ app from time to time to view IOCCC mastodon updates.</p>
 granted provided this this copyright and notice are included in its entirety
 and remains unaltered. All other uses <strong>MUST</strong> receive prior permission in
 writing by <a href="../contact.html">contacting the judges</a>.</p>
-<h2 id="rules-version">Rules version</h2>
+<h2 id="rules-version">Rules Version</h2>
 <p>These IOCCC Rules are version <strong>29.05 2025-11-21</strong>.</p>
 <p>Be sure to read the <a href="guidelines.html">IOCCC guidelines</a>.</p>
 <div id="rule0">
@@ -575,7 +575,7 @@ a case insensitive filesystem.</p></li>
 <p>See <a href="../markdown.html">IOCCC markdown guidelines</a>.</p>
 <p>See <a href="rules.html#rule-17---packaging">Rule 17 - Packaging</a>.</p>
 <div id="rule5">
-<h2 id="rule-5---purity">Rule 5 - Purity</h2>
+<h2 id="rule-5---integrity">Rule 5 - Integrity</h2>
 </div>
 <p>Your submission <strong>MUST NOT</strong> modify the filenames or content of any of
 your original submission, such as <code>prog.c</code>, <code>Makefile</code>, or any supplied
@@ -658,7 +658,7 @@ bits are <strong>NOT</strong> allowed in submissions and those bits will <strong
 <code>mkiocccentry(1)</code>.</p>
 <p>See <a href="rules.html#rule-4---files">Rule 4 - Files</a>,
 and
-<a href="rules.html#rule-5---purity">Rule 5 - Purity</a>.</p>
+<a href="rules.html#rule-5---integrity">Rule 5 - Integrity</a>.</p>
 <div id="rule11">
 <h2 id="rule-11---abuse">Rule 11 - Abuse</h2>
 </div>
diff --git a/sitemap.xml b/sitemap.xml
index 059ee5496..b7f6295d2 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -16758,11 +16758,11 @@
 </url>
 <url>
     <loc>https://www.ioccc.org/faq.html</loc>
-    <lastmod>2025-11-21T00:14:43+00:00</lastmod>
+    <lastmod>2025-11-24T02:03:48+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/faq.md</loc>
-    <lastmod>2025-11-21T00:14:46+00:00</lastmod>
+    <lastmod>2025-11-24T02:00:01+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/inc/index.html</loc>
@@ -16870,11 +16870,11 @@
 </url>
 <url>
     <loc>https://www.ioccc.org/next/rules.html</loc>
-    <lastmod>2025-11-21T12:43:18+00:00</lastmod>
+    <lastmod>2025-11-24T02:03:52+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/next/rules.md</loc>
-    <lastmod>2025-11-21T12:42:42+00:00</lastmod>
+    <lastmod>2025-11-24T02:00:01+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/next/submit.html</loc>
@@ -16938,7 +16938,7 @@
 </url>
 <url>
     <loc>https://www.ioccc.org/status.html</loc>
-    <lastmod>2025-11-21T00:15:04+00:00</lastmod>
+    <lastmod>2025-11-24T02:04:08+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/status.json</loc>