diff --git a/README.md b/README.md
index 37ef8b9..fdb5281 100644
--- a/README.md
+++ b/README.md
@@ -29,10 +29,10 @@
 - 🐶 Husky & Lint Staged - Run scripts on your staged files before they are committed
 - 🔹 Icons - From Lucide
 - 🌑 Dark mode - With next-themes
-- 🗺️ Sitemap & robots.txt - With next-sitemap
 - 📝 Commitlint - Lint your git commits
 - 🤖 Github actions - Lint your code on PR
 - ⚙️ T3-env - Manage your environment variables
+- 🗺️ Sitemap & robots.txt
 - 💯 Perfect Lighthouse score
 - 🌐 I18n with Paraglide
 
diff --git a/next-sitemap.config.js b/next-sitemap.config.js
deleted file mode 100644
index e37205b..0000000
--- a/next-sitemap.config.js
+++ /dev/null
@@ -1,7 +0,0 @@
-module.exports = {
-  siteUrl: process.env.APP_URL,
-  generateRobotsTxt: true,
-  robotsTxtOptions: {
-    policies: [{ userAgent: '*', allow: '/' }],
-  },
-};
diff --git a/package-lock.json b/package-lock.json
index 8bea68d..ad1625b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -56,8 +56,7 @@
         "jest": "^29.7.0",
         "jest-environment-jsdom": "^29.7.0",
         "lint-staged": "^15.2.7",
-        "next-sitemap": "^4.2.3",
-        "postcss": "8.4.39",
+        "postcss": "^8",
         "prettier": "^3.3.2",
         "prisma": "^5.16.2",
         "tailwindcss": "^3.4.4",
@@ -1183,12 +1182,6 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
-    "node_modules/@corex/deepmerge": {
-      "version": "4.0.43",
-      "resolved": "https://registry.npmjs.org/@corex/deepmerge/-/deepmerge-4.0.43.tgz",
-      "integrity": "sha512-N8uEMrMPL0cu/bdboEWpQYb/0i2K5Qn8eCsxzOmxSggJbbQte7ljMRoXm917AbntqTGOzdTu+vP3KOOzoC70HQ==",
-      "dev": true
-    },
     "node_modules/@eslint-community/eslint-utils": {
       "version": "4.4.0",
       "resolved": "https://registry.npmjs.org/@eslint-community/eslint-utils/-/eslint-utils-4.4.0.tgz",
@@ -9205,39 +9198,6 @@
         }
       }
     },
-    "node_modules/next-sitemap": {
-      "version": "4.2.3",
-      "resolved": "https://registry.npmjs.org/next-sitemap/-/next-sitemap-4.2.3.tgz",
-      "integrity": "sha512-vjdCxeDuWDzldhCnyFCQipw5bfpl4HmZA7uoo3GAaYGjGgfL4Cxb1CiztPuWGmS+auYs7/8OekRS8C2cjdAsjQ==",
-      "dev": true,
-      "funding": [
-        {
-          "url": "https://github.com/iamvishnusankar/next-sitemap.git"
-        }
-      ],
-      "dependencies": {
-        "@corex/deepmerge": "^4.0.43",
-        "@next/env": "^13.4.3",
-        "fast-glob": "^3.2.12",
-        "minimist": "^1.2.8"
-      },
-      "bin": {
-        "next-sitemap": "bin/next-sitemap.mjs",
-        "next-sitemap-cjs": "bin/next-sitemap.cjs"
-      },
-      "engines": {
-        "node": ">=14.18"
-      },
-      "peerDependencies": {
-        "next": "*"
-      }
-    },
-    "node_modules/next-sitemap/node_modules/@next/env": {
-      "version": "13.5.6",
-      "resolved": "https://registry.npmjs.org/@next/env/-/env-13.5.6.tgz",
-      "integrity": "sha512-Yac/bV5sBGkkEXmAX5FWPS9Mmo2rthrOPRQQNfycJPkjUAUclomCPH7QFVCDQ4Mp2k2K1SSM6m0zrxYrOwtFQw==",
-      "dev": true
-    },
     "node_modules/next-themes": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/next-themes/-/next-themes-0.3.0.tgz",
@@ -9835,6 +9795,7 @@
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
       "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
+      "dev": true,
       "hasInstallScript": true,
       "optional": true,
       "os": [
diff --git a/package.json b/package.json
index ae862f2..abc148a 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,6 @@
     "test:watch": "jest --watchAll",
     "e2e": "playwright test",
     "e2e:ui": "playwright test --ui",
-    "postbuild": "next-sitemap --config next-sitemap.config.js",
     "prepare": "husky",
     "postinstall": "paraglide-js compile --project ./project.inlang --outdir ./src/paraglide"
   },
@@ -79,7 +78,6 @@
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",
     "lint-staged": "^15.2.7",
-    "next-sitemap": "^4.2.3",
     "postcss": "^8",
     "prettier": "^3.3.2",
     "prisma": "^5.16.2",
diff --git a/src/app/robots.ts b/src/app/robots.ts
new file mode 100644
index 0000000..a5f4a27
--- /dev/null
+++ b/src/app/robots.ts
@@ -0,0 +1,13 @@
+import { MetadataRoute } from 'next';
+
+import { env } from '@/env.mjs';
+
+export default function robots(): MetadataRoute.Robots {
+  return {
+    rules: {
+      userAgent: '*',
+      allow: '/',
+    },
+    sitemap: `${env.APP_URL}/sitemap.xml`,
+  };
+}
diff --git a/src/app/sitemap.ts b/src/app/sitemap.ts
new file mode 100644
index 0000000..c0ca26a
--- /dev/null
+++ b/src/app/sitemap.ts
@@ -0,0 +1,19 @@
+import { MetadataRoute } from 'next';
+
+import { env } from '@/env.mjs';
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  return [
+    {
+      url: env.APP_URL || '/',
+      lastModified: new Date(),
+      changeFrequency: 'yearly',
+      priority: 1,
+      alternates: {
+        languages: {
+          pl: `${env.APP_URL}/pl`,
+        },
+      },
+    },
+  ];
+}