diff --git a/Dockerfile b/Dockerfile
index 9fd3e6e..f25e3a5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,9 +13,15 @@ RUN npm install
 # Copy the application code
 COPY . .
 
+# Set IS_BUILD environment variable for build process
+ENV IS_BUILD=true
+
 # Build the Next.js application
 RUN npm run build
 
+# Unset IS_BUILD environment variable for runtime
+ENV IS_BUILD=false
+
 # Set environmental variable for production mode
 ENV NODE_ENV=production
 
@@ -23,4 +29,4 @@ ENV NODE_ENV=production
 EXPOSE 3000
 
 # Run the app with the start script
-CMD ["npm", "start"]
+CMD ["npm", "start"]s
diff --git a/app/api/sitemap/route.tsx b/app/api/sitemap/route.tsx
index 852e56a..24a26ce 100644
--- a/app/api/sitemap/route.tsx
+++ b/app/api/sitemap/route.tsx
@@ -1,3 +1,4 @@
+// portfolio/app/api/sitemap/route.tsx
 import { NextResponse } from "next/server";
 
 interface Project {
@@ -13,7 +14,7 @@ interface SitemapRoute {
   lastModified: string;
 }
 
-const baseUrl = "http://localhost:3000";
+const baseUrl = "https://dki.one";
 
 const generateSitemap = async (): Promise<SitemapRoute[]> => {
   try {
@@ -30,6 +31,25 @@ const generateSitemap = async (): Promise<SitemapRoute[]> => {
       },
     ];
 
+    // Check if running in build environment
+    if (process.env.IS_BUILD) {
+      // Use mock data during build
+      const mockProjectsData: ProjectsData = {
+        posts: [
+          { slug: "project-1" },
+          { slug: "project-2" },
+          { slug: "project-3" },
+        ],
+      };
+      const projectRoutes: SitemapRoute[] = mockProjectsData.posts.map(
+        (project) => ({
+          url: `${baseUrl}/projects/${project.slug}`,
+          lastModified: new Date().toISOString(),
+        }),
+      );
+      return [...staticRoutes, ...projectRoutes];
+    }
+
     // Fetch project data from your API
     console.log("Fetching project data from API...");
     const response = await fetch(`${baseUrl}/api/fetchAllProjects`);
diff --git a/app/sitemap.tsx b/app/sitemap.tsx
index 8eaff30..9941f4a 100644
--- a/app/sitemap.tsx
+++ b/app/sitemap.tsx
@@ -15,9 +15,9 @@ interface SitemapRoute {
 }
 
 export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
-  const baseUrl = "http://localhost:3000";
+  const baseUrl = "https://dki.one";
 
-  // Fetch the sitemap data from the dynamic API route
+  // Fetch the sitemap data from the dynamic API routes
   const response = await fetch(`${baseUrl}/api/sitemap`);
   if (!response.ok) {
     throw new Error(`Failed to fetch sitemap: ${response.statusText}`);