diff --git a/templates/thread.html b/templates/thread.html
index 5245adf99..655b9095d 100644
--- a/templates/thread.html
+++ b/templates/thread.html
@@ -29,7 +29,7 @@
         {% for post in posts -%}
         <div id="post-{{ post.id}}" class="list-group-item d-flex row">
           <div class="d-flex flex-column border-right col-2">
-            <img class="mx-auto" src="https://www.gravatar.com/avatar/{{ post.author_gravatar }}?d=monsterid" style="width: 80px;"/>
+            <img class="mx-auto" src="https://www.gravatar.com/avatar/{{ post.author_gravatar }}?d=monsterid&s=160" style="width: 80px;"/>
             <span class="mx-auto text-center"><strong>{{ post.author_name }}</strong></span>
           </div>