diff --git a/blocks/timeline/templates/event-list-content.mustache b/blocks/timeline/templates/event-list-content.mustache
index 652f380fd09..573542b7d4d 100644
--- a/blocks/timeline/templates/event-list-content.mustache
+++ b/blocks/timeline/templates/event-list-content.mustache
@@ -66,7 +66,7 @@
 <div class="pb-2" data-region="event-list-wrapper">
     {{#eventsbyday}}
         <div class="mt-3" data-region="event-list-content-date" data-timestamp="{{dayTimestamp}}">
-            <h5 class="h6 d-inline {{^courseview}}fw-bold px-2{{/courseview}}">{{#userdate}} {{dayTimestamp}}, {{#str}} strftimedaydate, core_langconfig {{/str}}  {{/userdate}}</h5>
+            <h4 class="h6 d-inline {{^courseview}}fw-bold px-2{{/courseview}}">{{#userdate}} {{dayTimestamp}}, {{#str}} strftimedaydate, core_langconfig {{/str}}  {{/userdate}}</h4>
         </div>
         {{> block_timeline/event-list-items }}
     {{/eventsbyday}}
diff --git a/blocks/timeline/templates/event-list-item.mustache b/blocks/timeline/templates/event-list-item.mustache
index efd5d1ab45a..9fe7632e3e4 100644
--- a/blocks/timeline/templates/event-list-item.mustache
+++ b/blocks/timeline/templates/event-list-item.mustache
@@ -66,13 +66,13 @@
             </div>
             <div class="event-name-container flex-grow-1 line-height-3 nowrap text-truncate">
                 <div class="d-flex">
-                    <h6 class="event-name mb-0 pb-1 text-truncate">
+                    <h5 class="h6 event-name mb-0 pb-1 text-truncate">
                         {{#overdue}}<span class="badge rounded-pill bg-danger text-white ms-1 float-end">{{#str}} overdue, block_timeline {{/str}}</span>{{/overdue}}
                         <a href="{{url}}"
                                 title="{{name}}"
                                 aria-label='{{#cleanstr}} ariaeventlistitem, block_timeline, { "name": {{#quote}}{{{activityname}}}{{/quote}}, "course": {{#quote}}{{{course.fullnamedisplay}}}{{/quote}}, "date": "{{#userdate}} {{timesort}}, {{#str}} strftimedatetime, core_langconfig {{/str}} {{/userdate}}" } {{/cleanstr}}'>
                             {{{activityname}}}</a>
-                    </h6>
+                    </h5>
                 </div>
                 <small class="mb-0">
                     {{#courseview}}
@@ -86,7 +86,7 @@
         </div>
         {{#action.actionable}}
         <div class="d-flex timeline-action-button">
-            <h6 class="event-action">
+            <h5 class="h6 event-action">
                 <a class="list-group-item-action btn btn-outline-secondary btn-sm text-nowrap"
                     href="{{action.url}}"
                     aria-label="{{action.name}}"
@@ -96,7 +96,7 @@
                 <span class="badge bg-secondary text-dark">{{action.itemcount}}</span>
                 {{/action.showitemcount}}
                 </a>
-            </h6>
+            </h5>
         </div>
         {{/action.actionable}}
     </div>