diff --git a/questions/qa-accept-lang-locales.de.html b/questions/qa-accept-lang-locales.de.html
index 1af00148..86d379c8 100644
--- a/questions/qa-accept-lang-locales.de.html
+++ b/questions/qa-accept-lang-locales.de.html
@@ -133,7 +133,7 @@ <h2>Literaturhinweise</h2>
 
 <ul id="full-links">
     <li>
-      <p><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4">Was die HTTP-Spezifikation zu Accept-Language sagt</a> </p>
+      <p><a href="https://www.rfc-editor.org/rfc/rfc9110.html#field.accept-language">Was die HTTP-Spezifikation zu Accept-Language sagt</a> </p>
     </li>
     <li>
       <p><a href="/International/techniques/authoring-html#language">Andere W3C-I18n-Ressourcen zum Thema Sprache</a> </p>
diff --git a/questions/qa-accept-lang-locales.en.html b/questions/qa-accept-lang-locales.en.html
index a2bf9ea1..028a00c6 100644
--- a/questions/qa-accept-lang-locales.en.html
+++ b/questions/qa-accept-lang-locales.en.html
@@ -134,7 +134,7 @@ <h2>Further reading</h2>
 
 <ul id="full-links">
     <li>
-      <p><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4">What the HTTP specification says about Accept-Language</a></p>
+      <p><a href="https://www.rfc-editor.org/rfc/rfc9110.html#field.accept-language">What the HTTP specification says about Accept-Language</a></p>
     </li>
     <li>
       <p><a href="/International/techniques/authoring-html#language">Other W3C I18N resources relating to language</a></p>
diff --git a/questions/qa-accept-lang-locales.es.html b/questions/qa-accept-lang-locales.es.html
index 511d1dcf..71c67bc7 100644
--- a/questions/qa-accept-lang-locales.es.html
+++ b/questions/qa-accept-lang-locales.es.html
@@ -108,7 +108,7 @@ <h2>Lecturas complementarias</h2>
 
 <ul id="full-links">
     <li>
-      <p><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4">Qué dice la especificación HTTP acerca de Accept-Language</a> </p>
+      <p><a href="https://www.rfc-editor.org/rfc/rfc9110.html#field.accept-language">Qué dice la especificación HTTP acerca de Accept-Language</a> </p>
     </li>
     <li>
       <p><a href="/International/techniques/authoring-html#language">Otros recursos de W3C I18N relacionados con el idioma</a> </p>
diff --git a/questions/qa-accept-lang-locales.hu.html b/questions/qa-accept-lang-locales.hu.html
index 76ec96b6..3da9fcb8 100755
--- a/questions/qa-accept-lang-locales.hu.html
+++ b/questions/qa-accept-lang-locales.hu.html
@@ -131,7 +131,7 @@ <h2>További olvasnivaló</h2>
 
 <ul id="full-links">
     <li>
-      <p><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4">A HTTP specifikáció a böngészőből jövő kérés nyelvi beállításairól</a> </p>
+      <p><a href="https://www.rfc-editor.org/rfc/rfc9110.html#field.accept-language">A HTTP specifikáció a böngészőből jövő kérés nyelvi beállításairól</a> </p>
     </li>
     <li>
       <p><a href="/International/techniques/authoring-html#language">Más W3C I18N források a nyelvvel kapcsolatban</a> </p>
diff --git a/questions/qa-accept-lang-locales.ru.html b/questions/qa-accept-lang-locales.ru.html
index 8d3d65ad..0e0d9339 100644
--- a/questions/qa-accept-lang-locales.ru.html
+++ b/questions/qa-accept-lang-locales.ru.html
@@ -134,7 +134,7 @@ <h2>Дополнительные материалы</h2>
 
 <ul id="full-links">
     <li>
-      <p><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4">Что говорит спецификация HTTP о Accept-Language</a> </p>
+      <p><a href="https://www.rfc-editor.org/rfc/rfc9110.html#field.accept-language">Что говорит спецификация HTTP о Accept-Language</a> </p>
     </li>
     <li>
       <p><a href="/International/techniques/authoring-html#language">Другие ресурсы W3C I18N, связанные с языком</a> </p>
diff --git a/questions/qa-accept-lang-locales.uk.html b/questions/qa-accept-lang-locales.uk.html
index ff73e843..a2ae6d31 100644
--- a/questions/qa-accept-lang-locales.uk.html
+++ b/questions/qa-accept-lang-locales.uk.html
@@ -134,7 +134,7 @@ <h2>Додаткові матеріали</h2>
 
 <ul id="full-links">
     <li>
-      <p><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4">Що говорить специфікація HTTP про Accept-Language</a> </p>
+      <p><a href="https://www.rfc-editor.org/rfc/rfc9110.html#field.accept-language">Що говорить специфікація HTTP про Accept-Language</a> </p>
     </li>
     <li>
       <p><a href="/International/techniques/authoring-html#language">Інші ресурси W3C I18N, що пов'язані з мовою</a> </p>