diff --git a/app/javascript/flavours/glitch/components/admin/Dimension.jsx b/app/javascript/flavours/glitch/components/admin/Dimension.jsx
index de24a4bf3c..f0e9c12b3a 100644
--- a/app/javascript/flavours/glitch/components/admin/Dimension.jsx
+++ b/app/javascript/flavours/glitch/components/admin/Dimension.jsx
@@ -85,7 +85,7 @@ export default class Dimension extends PureComponent {
 
     return (
       <div className='dimension'>
-        <h4>{label}</h4>
+        <h2>{label}</h2>
 
         {content}
       </div>
diff --git a/app/javascript/flavours/glitch/components/admin/ImpactReport.jsx b/app/javascript/flavours/glitch/components/admin/ImpactReport.jsx
index 06d1a6a343..2ca7a9560c 100644
--- a/app/javascript/flavours/glitch/components/admin/ImpactReport.jsx
+++ b/app/javascript/flavours/glitch/components/admin/ImpactReport.jsx
@@ -49,7 +49,7 @@ export default class ImpactReport extends PureComponent {
 
     return (
       <div className='dimension'>
-        <h4><FormattedMessage id='admin.impact_report.title' defaultMessage='Impact summary' /></h4>
+        <FormattedMessage id='admin.impact_report.title' defaultMessage='Impact summary' tagName="h2" />
 
         <table>
           <tbody>
diff --git a/app/javascript/flavours/glitch/components/admin/Retention.jsx b/app/javascript/flavours/glitch/components/admin/Retention.jsx
index e2a19d5844..ff021d7e92 100644
--- a/app/javascript/flavours/glitch/components/admin/Retention.jsx
+++ b/app/javascript/flavours/glitch/components/admin/Retention.jsx
@@ -145,7 +145,7 @@ export default class Retention extends PureComponent {
 
     return (
       <div className='retention'>
-        <h4>{title}</h4>
+        <h2>{title}</h2>
 
         {content}
       </div>
diff --git a/app/javascript/flavours/glitch/components/admin/Trends.jsx b/app/javascript/flavours/glitch/components/admin/Trends.jsx
index b64f3f90ab..51ac2b6094 100644
--- a/app/javascript/flavours/glitch/components/admin/Trends.jsx
+++ b/app/javascript/flavours/glitch/components/admin/Trends.jsx
@@ -66,7 +66,7 @@ export default class Trends extends PureComponent {
 
     return (
       <div className='trends trends--compact'>
-        <h4><FormattedMessage id='trends.trending_now' defaultMessage='Trending now' /></h4>
+        <FormattedMessage id='trends.trending_now' defaultMessage='Trending now' tagName='h2' />
 
         {content}
       </div>
diff --git a/app/javascript/flavours/glitch/styles/mastodon/admin.scss b/app/javascript/flavours/glitch/styles/mastodon/admin.scss
index 980d46896f..45869a1624 100644
--- a/app/javascript/flavours/glitch/styles/mastodon/admin.scss
+++ b/app/javascript/flavours/glitch/styles/mastodon/admin.scss
@@ -267,7 +267,7 @@ $content-width: 840px;
         }
       }
 
-      h2 small {
+      h1 small {
         font-size: 12px;
         display: block;
         font-weight: 500;
@@ -281,22 +281,16 @@ $content-width: 840px;
       }
     }
 
-    h2 {
+    :where(h1),
+    .heading-large {
       color: var(--color-text-primary);
       font-size: 24px;
       line-height: 36px;
       font-weight: 700;
     }
 
-    h3 {
-      color: var(--color-text-primary);
-      font-size: 20px;
-      line-height: 28px;
-      font-weight: 400;
-      margin-bottom: 30px;
-    }
-
-    h4 {
+    :where(h2):not(.heading-medium),
+    .heading-small {
       text-transform: uppercase;
       font-size: 13px;
       font-weight: 700;
@@ -306,6 +300,14 @@ $content-width: 840px;
       border-top: 1px solid var(--color-border-primary);
     }
 
+    .heading-medium {
+      color: var(--color-text-primary);
+      font-size: 20px;
+      line-height: 28px;
+      font-weight: 400;
+      margin-bottom: 30px;
+    }
+
     h6 {
       font-size: 16px;
       color: var(--color-text-primary);