diff --git a/source/_includes/talk/event-list.html.twig b/source/_includes/talk/event-list.html.twig
index 7d6359b5..81293782 100644
--- a/source/_includes/talk/event-list.html.twig
+++ b/source/_includes/talk/event-list.html.twig
@@ -3,7 +3,7 @@
         <h2>Events</h2>
 
         <ul>
-            {% for event in events|sort((a, b) => a.date > b.date) %}
+            {% for event in events|sort((a, b) => a.date <=> b.date) %}
                 {% include 'talk/event-list-event.html.twig' with {
                     date: event.date,
                     is_online: event.is_online ?? false,
diff --git a/source/_pages/talks.html.twig b/source/_pages/talks.html.twig
index 87d20cf5..86bf3831 100644
--- a/source/_pages/talks.html.twig
+++ b/source/_pages/talks.html.twig
@@ -10,7 +10,7 @@ Drupal, automated testing, Git, CSS, and systems administration.</p>
 
 <div class="mt-10">
     <div class="space-y-8">
-        {% for talk in data.talks|sort((a, b) => get_last_event_date_for_talk(a) < get_last_event_date_for_talk(b)) %}
+        {% for talk in data.talks|sort((a, b) => get_last_event_date_for_talk(a) <=> get_last_event_date_for_talk(b)) %}
             <article>
                 <h2>
                     <a class="dark:text-blue-400 text-blue-primary" href="{{ talk.url|trim('/', 'right') }}">