diff --git a/components/article.php b/components/article.php
index 5f6ae9f..8e61782 100644
--- a/components/article.php
+++ b/components/article.php
@@ -10,7 +10,7 @@
   <?php } ?>
 
   <div class="thumbnail mb-half" aria-hidden="true">
-    <?php the_post_thumbnail( ); ?>
+    <?php the_post_thumbnail( 'post-size' ); ?>
   </div>
 
   <div class="article-entry mb-1">