diff --git a/src/components/get-publishable-posts.ts b/src/components/get-posts.ts
similarity index 72%
rename from src/components/get-publishable-posts.ts
rename to src/components/get-posts.ts
index 8242e35..86da888 100644
--- a/src/components/get-publishable-posts.ts
+++ b/src/components/get-posts.ts
@@ -1,5 +1,17 @@
 import { getCollection, type CollectionEntry } from "astro:content";
 
+const getTime = (post: CollectionEntry<"docs">): number => {
+  if (post.data.lastUpdated instanceof Date) {
+    return post.data.lastUpdated.getTime();
+  }
+
+  if (typeof post.data.lastUpdated === "number") {
+    return post.data.lastUpdated;
+  }
+
+  return 0;
+};
+
 export const getPublishablePosts = async () => {
   const posts = await getCollection(
     "docs",
@@ -9,11 +21,8 @@ export const getPublishablePosts = async () => {
       !post.data.draft &&
       post.data.pagefind
   );
-  return posts.sort(
-    (postA, postB) =>
-      (postB.data.lastUpdated as Date).getTime() -
-      (postA.data.lastUpdated as Date).getTime()
-  );
+
+  return posts.sort((postA, postB) => getTime(postB) - getTime(postA));
 };
 
 const sections = ["React", "Dark mode", "CSS", "TypeScript", "Yarn", "Others"];
diff --git a/src/content/docs/posts/full.mdx b/src/content/docs/posts/full.mdx
index 496076e..0da283d 100644
--- a/src/content/docs/posts/full.mdx
+++ b/src/content/docs/posts/full.mdx
@@ -4,7 +4,7 @@ template: splash
 ---
 
 import LinkToPost from "@components/LinkToPost.astro";
-import { getPublishablePostsBySection } from "@components/get-publishable-posts";
+import { getPublishablePostsBySection } from "@components/get-posts";
 
 {
 Object.entries(await getPublishablePostsBySection()).map(([section, posts]) => {
diff --git a/src/content/docs/posts/index.mdx b/src/content/docs/posts/index.mdx
index 7da4678..d4f0b27 100644
--- a/src/content/docs/posts/index.mdx
+++ b/src/content/docs/posts/index.mdx
@@ -4,7 +4,7 @@ template: splash
 ---
 
 import LinkToPost from "@components/LinkToPost.astro";
-import { getPublishablePosts } from "@components/get-publishable-posts";
+import { getPublishablePosts } from "@components/get-posts";
 
 ### Latest posts