diff --git a/packages/docusaurus-theme-classic/src/theme/BlogArchivePage/index.tsx b/packages/docusaurus-theme-classic/src/theme/BlogArchivePage/index.tsx
index 82150becd3eea..28613c6a462ac 100644
--- a/packages/docusaurus-theme-classic/src/theme/BlogArchivePage/index.tsx
+++ b/packages/docusaurus-theme-classic/src/theme/BlogArchivePage/index.tsx
@@ -54,7 +54,7 @@ function YearsSection({years}: {years: YearProp[]}) {
 }
 
 function listPostsByYears(blogPosts: readonly ArchiveBlogPost[]): YearProp[] {
-  const postsByYear = blogPosts.reduceRight((posts, post) => {
+  const postsByYear = blogPosts.reduce((posts, post) => {
     const year = post.metadata.date.split('-')[0]!;
     const yearPosts = posts.get(year) ?? [];
     return posts.set(year, [post, ...yearPosts]);