diff --git a/src/app/sitemap.ts b/src/app/sitemap.ts
index 3b6ce5e..30dbf0f 100644
--- a/src/app/sitemap.ts
+++ b/src/app/sitemap.ts
@@ -2,29 +2,32 @@ import { MetadataRoute } from 'next';
 
 export default function sitemap(): MetadataRoute.Sitemap {
   const baseUrl = 'https://crischarles.vercel.app';
-  // Updated to match the latest timestamp from your XML generator
-  const lastMod = '2026-06-15T10:13:28+00:00';
+  const lastMod = new Date().toISOString();
 
   return [
     {
       url: baseUrl,
       lastModified: lastMod,
       priority: 1.0,
+      changeFrequency: 'weekly', // Add this
     },
     {
       url: `${baseUrl}/projects`,
       lastModified: lastMod,
       priority: 0.8,
+      changeFrequency: 'monthly',
     },
     {
       url: `${baseUrl}/certifications`,
       lastModified: lastMod,
       priority: 0.8,
+      changeFrequency: 'monthly',
     },
     {
       url: `${baseUrl}/blog`,
       lastModified: lastMod,
       priority: 0.8,
+      changeFrequency: 'weekly',
     },
   ];
 }