diff --git a/src/app/posts/[slug]/opengraph-image.tsx b/src/app/posts/[slug]/opengraph-image.tsx
index d09727e..39df507 100644
--- a/src/app/posts/[slug]/opengraph-image.tsx
+++ b/src/app/posts/[slug]/opengraph-image.tsx
@@ -14,7 +14,6 @@ async function getPostTitle(slug: string) {
 }
 
 export const runtime = 'edge';
-export const revalidate = false; // On-demand static generation
 
 export const size = {
   width: 1200,
diff --git a/src/app/posts/[slug]/page.tsx b/src/app/posts/[slug]/page.tsx
index 23e42b2..d2f1837 100644
--- a/src/app/posts/[slug]/page.tsx
+++ b/src/app/posts/[slug]/page.tsx
@@ -18,10 +18,7 @@ export async function generateMetadata({
       title: frontmatter.title,
       description: excerpt,
       openGraph: {
-        title: {
-          default: siteMetadata.title,
-          template: `%s | ${siteMetadata.title}`,
-        },
+        title: frontmatter.title,
         description: excerpt,
         url: `${siteMetadata.origin}/posts/${slug}`,
         siteName: siteMetadata.title,
diff --git a/src/app/rss.xml/route.ts b/src/app/rss.xml/route.ts
index 57d5892..2abb80f 100644
--- a/src/app/rss.xml/route.ts
+++ b/src/app/rss.xml/route.ts
@@ -2,7 +2,8 @@ import RSS from 'rss';
 import { getPosts } from '@/internals/posts';
 import siteMetadata from '@/siteMetadata';
 
-export const revalidate = false; // Cache forever like a static file
+export const dynamic = 'force-dynamic';
+// export const revalidate = 0; // Cache forever like a static file
 
 export async function GET() {
   const feed = new RSS({
@@ -16,11 +17,10 @@ export async function GET() {
 
   for (const post of posts) {
     const postUrl = new URL(`/posts/${post.slug}`, siteMetadata.origin).href;
-    const html = await fetch(postUrl, { redirect: 'follow' }).then((res) =>
-      res.text(),
-    );
-    const contentHtml =
-      html.match(/<main(?:[^>]*?)>([\s\S]+?)<\/main>/)?.[1] || '';
+    const html = await fetch(postUrl, {
+      next: { tags: ['rss'] },
+    }).then((response) => response.text());
+    const contentHtml = html.match(/<main(?:[^>]*?)>([\s\S]+?)<\/main>/)?.[1];
     const image = html.match(
       /<meta property="og:image" content="([\s\S]+?)"\s?\/?>/,
     )?.[1];
diff --git a/src/siteMetadata.ts b/src/siteMetadata.ts
index 33656ac..3656aff 100644
--- a/src/siteMetadata.ts
+++ b/src/siteMetadata.ts
@@ -5,7 +5,8 @@ export default {
   repo: 'https://github.com/kevin940726/kaihao.dev',
   origin:
     process.env.HOST ||
-    (process.env.VERCEL_ENV !== 'production' &&
+    (process.env.VERCEL_ENV &&
+      process.env.VERCEL_ENV !== 'production' &&
       `https://${process.env.VERCEL_URL}`) ||
     'https://kaihao.dev',
   siteUrl: 'https://kaihao.dev',