diff --git a/frontend/apps/service-site/src/features/posts/components/PostListPage/PostListPage.tsx b/frontend/apps/service-site/src/features/posts/components/PostListPage/PostListPage.tsx
index ac69fc90a..7b03490c9 100644
--- a/frontend/apps/service-site/src/features/posts/components/PostListPage/PostListPage.tsx
+++ b/frontend/apps/service-site/src/features/posts/components/PostListPage/PostListPage.tsx
@@ -1,10 +1,10 @@
 import { type Lang, getTranslation } from '@/features/i18n'
 import { MDXContent } from '@/libs/contentlayer'
 import type { Post } from 'contentlayer/generated'
-import { compareDesc, format, parseISO } from 'date-fns'
+import { format, parseISO } from 'date-fns'
 import Link from 'next/link'
 import type { FC } from 'react'
-import { filterPostsByLang } from '../../utils'
+import { filterPostsByLang, sortPostsByDate } from '../../utils'
 
 function PostCard(post: Post) {
   return (
@@ -28,9 +28,7 @@ export const PostListPage: FC<Props> = ({ lang }) => {
   const { t } = getTranslation(lang)
 
   const posts = filterPostsByLang(lang)
-  const sortedPosts = posts.sort((a, b) =>
-    compareDesc(new Date(a.date), new Date(b.date)),
-  )
+  const sortedPosts = sortPostsByDate(posts)
 
   return (
     <div>
diff --git a/frontend/apps/service-site/src/features/posts/utils/index.ts b/frontend/apps/service-site/src/features/posts/utils/index.ts
index 824f2cbb9..205b31b29 100644
--- a/frontend/apps/service-site/src/features/posts/utils/index.ts
+++ b/frontend/apps/service-site/src/features/posts/utils/index.ts
@@ -1,2 +1,3 @@
 export * from './filterPostsByLang'
 export * from './findPostByLangAndSlug'
+export * from './sortPostsByDate'
diff --git a/frontend/apps/service-site/src/features/posts/utils/sortPostsByDate.ts b/frontend/apps/service-site/src/features/posts/utils/sortPostsByDate.ts
new file mode 100644
index 000000000..6df2f4ed9
--- /dev/null
+++ b/frontend/apps/service-site/src/features/posts/utils/sortPostsByDate.ts
@@ -0,0 +1,6 @@
+import type { Post } from 'contentlayer/generated'
+import { compareDesc } from 'date-fns'
+
+export function sortPostsByDate(posts: Post[]) {
+  return posts.sort((a, b) => compareDesc(new Date(a.date), new Date(b.date)))
+}
diff --git a/frontend/apps/service-site/src/features/top/components/TopPage/TopPage.tsx b/frontend/apps/service-site/src/features/top/components/TopPage/TopPage.tsx
index 412fc8012..887127fb9 100644
--- a/frontend/apps/service-site/src/features/top/components/TopPage/TopPage.tsx
+++ b/frontend/apps/service-site/src/features/top/components/TopPage/TopPage.tsx
@@ -1,7 +1,6 @@
 import { TopCards } from '@/components'
 import type { Lang } from '@/features/i18n'
-import { filterPostsByLang } from '@/features/posts'
-import { compareDesc } from 'date-fns'
+import { filterPostsByLang, sortPostsByDate } from '@/features/posts'
 import type { FC } from 'react'
 
 type Props = {
@@ -10,9 +9,7 @@ type Props = {
 
 export const TopPage: FC<Props> = ({ lang }) => {
   const posts = filterPostsByLang(lang)
-  const sortedPosts = posts.sort((a, b) =>
-    compareDesc(new Date(a.date), new Date(b.date)),
-  )
+  const sortedPosts = sortPostsByDate(posts)
 
   return <TopCards posts={sortedPosts.slice(0, 14)} />
 }