diff --git a/_layouts/single.html b/_layouts/single.html
index d74002b7..7826be5b 100644
--- a/_layouts/single.html
+++ b/_layouts/single.html
@@ -65,7 +65,7 @@ layout: default
   {% comment %}<!-- only show related on a post page when `related: true` -->{% endcomment %}
   {% if page.id and page.related and site.related_posts.size > 0 %}
     <div class="page__related">
-      <h4 class="page__related-title">{{ site.data.ui-text[site.locale].related_label | default: "You May Also Enjoy" }}</h4>
+      <h2 class="page__related-title">{{ site.data.ui-text[site.locale].related_label | default: "You May Also Enjoy" }}</h2>
       <div class="grid__wrapper">
         {% for post in site.related_posts limit:4 %}
           {% include archive-single.html type="grid" %}
@@ -75,7 +75,7 @@ layout: default
   {% comment %}<!-- otherwise show recent posts if no related when `related: true` -->{% endcomment %}
   {% elsif page.id and page.related %}
     <div class="page__related">
-      <h4 class="page__related-title">{{ site.data.ui-text[site.locale].related_label | default: "You May Also Enjoy" }}</h4>
+      <h2 class="page__related-title">{{ site.data.ui-text[site.locale].related_label | default: "You May Also Enjoy" }}</h2>
       <div class="grid__wrapper">
         {% for post in site.posts limit:4 %}
           {% if post.id == page.id %}
diff --git a/docs/_layouts/single.html b/docs/_layouts/single.html
index 63d5370a..5f4996f3 100644
--- a/docs/_layouts/single.html
+++ b/docs/_layouts/single.html
@@ -73,7 +73,7 @@ layout: default
               data-ad-format="auto"
               data-full-width-responsive="true"></ins>
       </div>
-      <h4 class="page__related-title">{{ site.data.ui-text[site.locale].related_label | default: "You May Also Enjoy" }}</h4>
+      <h2 class="page__related-title">{{ site.data.ui-text[site.locale].related_label | default: "You May Also Enjoy" }}</h2>
       <div class="grid__wrapper">
         {% for post in site.related_posts limit:4 %}
           {% include archive-single.html type="grid" %}
@@ -83,7 +83,7 @@ layout: default
   {% comment %}<!-- otherwise show recent posts if no related when `related: true` -->{% endcomment %}
   {% elsif page.id and page.related %}
     <div class="page__related">
-      <h4 class="page__related-title">{{ site.data.ui-text[site.locale].related_label | default: "You May Also Enjoy" }}</h4>
+      <h2 class="page__related-title">{{ site.data.ui-text[site.locale].related_label | default: "You May Also Enjoy" }}</h2>
       <div class="grid__wrapper">
         {% for post in site.posts limit:4 %}
           {% if post.id == page.id %}