diff --git a/source/_partials/blog/post-summary.html.twig b/source/_partials/blog/post-summary.html.twig
index 512f6769..dfd9d142 100644
--- a/source/_partials/blog/post-summary.html.twig
+++ b/source/_partials/blog/post-summary.html.twig
@@ -1,7 +1,12 @@
 <div class="spaced-y-2">
     <div class="spaced-y-2px">
         <h2 class="text-inherit text-lg m-0">
-            <a href="{{ post.external_url ?: post.url }}" class="text-inherit" tabindex="-1">
+            <a
+                href="{{ post.external_url ?: post.url }}"
+                class="text-inherit"
+                tabindex="-1"
+                {% if post.external_url %}target="_blank" rel="noopener"{% endif %}
+            >
                 {{ post.draft ? 'Draft: '|upper }}{{ post.title }}
             </a>
         </h2>