diff --git a/src/pages/[...slug].astro b/src/pages/[...slug].astro
index 4bc18f1..7b00093 100644
--- a/src/pages/[...slug].astro
+++ b/src/pages/[...slug].astro
@@ -6,8 +6,7 @@ import { getBlogDescription } from '../lib/get-blog-description';
 import { renderDateToHtml } from '../lib/render-date-to-html';
 
 export async function getStaticPaths() {
-  const entries = await getCollection('blog');
-  return entries.map((entry) => ({
+  return (await getCollection('blog')).map((entry) => ({
     params: { slug: entry.slug },
     props: { entry },
   }));
diff --git a/src/pages/blog.astro b/src/pages/blog.astro
index 729ceaf..ce0e278 100644
--- a/src/pages/blog.astro
+++ b/src/pages/blog.astro
@@ -12,15 +12,12 @@ const title = 'ブログ';
 const items = await Promise.all(
   (await getCollection('blog'))
     .toSorted((a, b) => b.data.pubDate.valueOf() - a.data.pubDate.valueOf())
-    .map(async (entry) => {
-      const description = await getBlogDescription(entry);
-      return {
-        title: entry.data.title,
-        link: getBlogUrl(entry),
-        meta: renderDateToHtml(entry.data.pubDate),
-        description,
-      };
-    }),
+    .map(async (entry) => ({
+      title: entry.data.title,
+      link: getBlogUrl(entry),
+      meta: renderDateToHtml(entry.data.pubDate),
+      description: await getBlogDescription(entry),
+    })),
 );
 ---
 
diff --git a/src/pages/external-posts.astro b/src/pages/external-posts.astro
index 9bc3f09..ad7fd64 100644
--- a/src/pages/external-posts.astro
+++ b/src/pages/external-posts.astro
@@ -8,16 +8,14 @@ import { renderDateToHtml } from '../lib/render-date-to-html';
 const title = '外部サイトの投稿';
 const description = '外部サイトに寄稿した記事、登壇したイベントやスライド、出版物など。';
 
-const items = await Promise.all(
-  (await getCollection('external-post'))
-    .toSorted((a, b) => b.data.pubDate.valueOf() - a.data.pubDate.valueOf())
-    .map(async (entry) => ({
-      title: entry.data.title,
-      link: entry.data.link,
-      meta: `${renderDateToHtml(entry.data.pubDate)} · ${entry.data.channel}`,
-      description: entry.data.description,
-    })),
-);
+const items = (await getCollection('external-post'))
+  .toSorted((a, b) => b.data.pubDate.valueOf() - a.data.pubDate.valueOf())
+  .map((entry) => ({
+    title: entry.data.title,
+    link: entry.data.link,
+    meta: `${renderDateToHtml(entry.data.pubDate)} · ${entry.data.channel}`,
+    description: entry.data.description,
+  }));
 ---
 
 <Layout title={title} description={description}>
diff --git a/src/pages/rss.xml.ts b/src/pages/rss.xml.ts
index 9cb1045..1d901b6 100644
--- a/src/pages/rss.xml.ts
+++ b/src/pages/rss.xml.ts
@@ -13,8 +13,9 @@ import { getBlogUrl } from '../lib/get-blog-url';
 export async function GET(context: APIContext) {
   invariant(context.site);
 
-  const renderers = await loadRenderers([getContainerRenderer()]);
-  const container = await AstroContainer.create({ renderers });
+  const container = await AstroContainer.create({
+    renderers: await loadRenderers([getContainerRenderer()]),
+  });
 
   const items = await Promise.all(
     [...(await getCollection('blog')), ...(await getCollection('external-post'))]