diff --git a/app/templates/views/features/letters.html b/app/templates/views/features/letters.html
index 89ccbc309..a81c6a706 100644
--- a/app/templates/views/features/letters.html
+++ b/app/templates/views/features/letters.html
@@ -35,7 +35,7 @@
   <p class="govuk-body">You can create reusable letter templates in Notify, or upload and send your own letters with the Notify API.</p>
   <p class="govuk-body">Read our <a class="govuk-link govuk-link--no-visited-state" href="{{ url_for('.documentation') }}">documentation</a>.</p>
 
-  <h2 class="heading heading-medium">International letters</h2>
+  <h3 class="heading heading-small" id="international-letters">International letters</h3>
   <p class="govuk-body">Notify checks for international addresses and will automatically charge you the correct postage.</p>
   <p class="govuk-body">Letters to Europe are delivered 3 to 5 days after they’re dispatched. Letters sent anywhere else in the world take 5 to 7 days to arrive.</p>