diff --git a/source/_pages/talks.md b/source/_pages/talks.md
index 5f0685457..7ee2acaf1 100644
--- a/source/_pages/talks.md
+++ b/source/_pages/talks.md
@@ -13,7 +13,7 @@ use:
 
 Since September 2012, I have given {{ talkCount }} public presentations and workshops at various conferences and meetups, in-person and remotely, on topics including PHP, Drupal, automated testing, Git, CSS, and systems administration.
 
-{% for talk in data.talks|sort((a, b) => a.events|last.date|date('U') > b.events|last.date|date('U') ? -1 : 1) %}
+{% for talk in data.talks|sort((a, b) => a.events|first.date|date('U') > b.events|first.date|date('U') ? -1 : 1) %}
   <article>
     <div class="not-prose">
       <h2 class="text-xl font-bold">