diff --git a/client/src/pages/category.tsx b/client/src/pages/category.tsx
index ace1815..5d71cbf 100644
--- a/client/src/pages/category.tsx
+++ b/client/src/pages/category.tsx
@@ -193,7 +193,7 @@ export default function CategoryPage() {
                     </article>
                   </Link>,
                 ];
-                if ((index + 1) % 3 === 0) {
+                if ((index + 1) % 8 === 0) {
                   items.push(<ArticleCardAd key={`ad-cat-${index}`} />);
                 }
                 return items;