diff --git a/app/views/downtimes/_form.html.erb b/app/views/downtimes/_form.html.erb
index 0b016abcc..952a5375b 100644
--- a/app/views/downtimes/_form.html.erb
+++ b/app/views/downtimes/_form.html.erb
@@ -8,7 +8,7 @@
       <div class="govuk-grid-column-one-half">
         <%= render "govuk_publishing_components/components/fieldset", {
           legend_text: "From date",
-          heading_size: "l"
+          heading_size: "m"
         } do %>
           <%= render "govuk_publishing_components/components/date_input", {
             hint: "For example, 01 08 2022",
@@ -19,7 +19,7 @@
       <div class="govuk-grid-column-one-half">
         <%= render "govuk_publishing_components/components/fieldset", {
           legend_text: "From time",
-          heading_size: "l"
+          heading_size: "m"
         } do %>
           <%= render "time_input", {
             hint: "For example, 9:30 or 19:30",
@@ -37,7 +37,7 @@
       <div class="govuk-grid-column-one-half">
         <%= render "govuk_publishing_components/components/fieldset", {
           legend_text: "To date",
-          heading_size: "l"
+          heading_size: "m"
         } do %>
           <%= render "govuk_publishing_components/components/date_input", {
             hint: "For example, 01 08 2022",
@@ -48,7 +48,7 @@
       <div class="govuk-grid-column-one-half">
         <%= render "govuk_publishing_components/components/fieldset", {
           legend_text: "To time",
-          heading_size: "l"
+          heading_size: "m"
         } do %>
           <%= render "time_input", {
             hint: "For example, 9:30 or 19:30",