diff --git a/frontend/scripts/generate-sitemap.js b/frontend/scripts/generate-sitemap.js
index f30786c..3d94a49 100644
--- a/frontend/scripts/generate-sitemap.js
+++ b/frontend/scripts/generate-sitemap.js
@@ -42,7 +42,7 @@ const createPostListOutlet = async tagName => `
                        fetchpriority="high"
                        decoding="async"
                        class="object-none w-full h-full"
-                       src="${ post.url }" />
+                       src="${ post.thumbnail }" />
                 </a>`).join ('') }
           </div>
         </div>