diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3e7b04..de3a620 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [2.1.1] - 2026-09-14
 
+### Changed
+
+- Renumbered every article's slug to sequential `article-N`, ordered by `publishedAt` (oldest
+  first), via a one-time PocketBase migration — replaces the previous descriptive slugs at the
+  owner's explicit request. Not reversible; existing links/indexed URLs using the old slugs now
+  404.
+
 ### Fixed
 
 - Language switch no longer overlaps the header logo on narrow viewports (~390px, e.g. iPhone 14
diff --git a/pocketbase/pb_migrations/1757500003_renumber_article_slugs.js b/pocketbase/pb_migrations/1757500003_renumber_article_slugs.js
new file mode 100644
index 0000000..8e527b9
--- /dev/null
+++ b/pocketbase/pb_migrations/1757500003_renumber_article_slugs.js
@@ -0,0 +1,35 @@
+/// <reference path="../pb_data/types.d.ts" />
+
+// One-time cleanup: replace every article's slug with a sequential
+// "article-N", ordered by publishedAt (oldest first; drafts, which have no
+// publishedAt, sort after published articles by creation order). Requested
+// explicitly by the site owner, aware this drops the existing descriptive
+// slugs and breaks any already-indexed/shared URLs using them.
+//
+// Two passes with a temporary unique slug in between: assigning final slugs
+// in a single pass can collide with another record's current slug that
+// hasn't been renamed yet (slug has a unique index).
+migrate((app) => {
+  const articles = app.findAllRecords('articles')
+
+  articles.sort((a, b) => {
+    const publishedA = a.getString('publishedAt')
+    const publishedB = b.getString('publishedAt')
+    if (publishedA && publishedB) return publishedA < publishedB ? -1 : publishedA > publishedB ? 1 : 0
+    if (publishedA) return -1
+    if (publishedB) return 1
+    return a.getString('created') < b.getString('created') ? -1 : 1
+  })
+
+  articles.forEach((record) => {
+    record.set('slug', `migrating-${record.id}`)
+    app.save(record)
+  })
+
+  articles.forEach((record, index) => {
+    record.set('slug', `article-${index + 1}`)
+    app.save(record)
+  })
+}, (_app) => {
+  // Not reversible: the original slugs aren't recorded anywhere.
+})