diff --git a/config/cron-task.js b/config/cron-task.js
index d6bd687..75799f7 100644
--- a/config/cron-task.js
+++ b/config/cron-task.js
@@ -1,6 +1,7 @@
 const path = require('path');
 const {backupDatabase} = require('../src/utils/backup-database');
 const {importBokanteComments} = require('../src/utils/import-bokante-comments');
+const {backfillBokanteMirror} = require('../src/utils/backfill-bokante-mirrors');
 
 module.exports = {
   myJob: {
@@ -37,4 +38,21 @@ module.exports = {
       tz: 'Indian/Reunion',
     },
   },
+  backfillBokanteMirror: {
+    task: async ({ strapi }) => {
+      if (!process.env.BOKANTE_ACCESS_TOKEN) {
+        return;
+      }
+
+      const {backfilled, slug} = await backfillBokanteMirror({strapi});
+
+      if (backfilled) {
+        strapi.log.info(`Backfill bokante : parole "${slug}" publiée.`);
+      }
+    },
+    options: {
+      rule: process.env.BOKANTE_BACKFILL_CRON || '0 * * * *',
+      tz: 'Indian/Reunion',
+    },
+  },
 };
diff --git a/src/utils/__tests__/backfill-bokante-mirrors.test.js b/src/utils/__tests__/backfill-bokante-mirrors.test.js
new file mode 100644
index 0000000..478df28
--- /dev/null
+++ b/src/utils/__tests__/backfill-bokante-mirrors.test.js
@@ -0,0 +1,75 @@
+import {describe, it, expect, vi, afterEach} from 'vitest';
+import {backfillBokanteMirror} from '../backfill-bokante-mirrors.js';
+
+const bokanteMastodon = require('../bokante-mastodon.js');
+
+function buildStrapi({paroles = []} = {}) {
+  const updateMany = vi.fn();
+
+  return {
+    db: {
+      query: () => ({
+        findMany: vi.fn(async ({where, orderBy, limit}) => {
+          expect(where).toEqual({
+            publishedAt: {$notNull: true},
+            bokanteStatusId: {$null: true}
+          });
+          expect(orderBy).toEqual({publishedAt: 'asc'});
+          expect(limit).toBe(1);
+          return paroles.slice(0, limit);
+        }),
+        updateMany
+      })
+    },
+    log: {error: vi.fn(), info: vi.fn()}
+  };
+}
+
+describe('backfillBokanteMirror', () => {
+  const originalCreateStatus = bokanteMastodon.createStatus;
+
+  afterEach(() => {
+    bokanteMastodon.createStatus = originalCreateStatus;
+  });
+
+  it('publie le miroir pour la parole publiée la plus ancienne sans bokanteStatusId', async () => {
+    bokanteMastodon.createStatus = vi.fn(async () => ({id: '112233'}));
+    const parole = {documentId: 'doc-1', titre: 'Vieux titre', slug: 'vieux-titre'};
+    const strapi = buildStrapi({paroles: [parole]});
+
+    const result = await backfillBokanteMirror({strapi});
+
+    expect(bokanteMastodon.createStatus).toHaveBeenCalledTimes(1);
+    expect(bokanteMastodon.createStatus.mock.calls[0][0]).toContain('Vieux titre');
+    expect(bokanteMastodon.createStatus.mock.calls[0][0]).not.toContain('nouvelle parole');
+    expect(strapi.db.query().updateMany).toHaveBeenCalledWith({
+      where: {documentId: 'doc-1'},
+      data: {bokanteStatusId: '112233'}
+    });
+    expect(result).toEqual({backfilled: true, slug: 'vieux-titre'});
+  });
+
+  it('ne fait rien si le catalogue est déjà rattrapé', async () => {
+    bokanteMastodon.createStatus = vi.fn();
+    const strapi = buildStrapi({paroles: []});
+
+    const result = await backfillBokanteMirror({strapi});
+
+    expect(bokanteMastodon.createStatus).not.toHaveBeenCalled();
+    expect(result).toEqual({backfilled: false});
+  });
+
+  it('n\'interrompt rien si bokante échoue, et ne marque pas la parole comme traitée', async () => {
+    bokanteMastodon.createStatus = vi.fn(async () => {
+      throw new Error('boom');
+    });
+    const parole = {documentId: 'doc-1', titre: 'Titre', slug: 'titre'};
+    const strapi = buildStrapi({paroles: [parole]});
+
+    const result = await backfillBokanteMirror({strapi});
+
+    expect(strapi.log.error).toHaveBeenCalledWith(expect.stringContaining('titre'));
+    expect(strapi.db.query().updateMany).not.toHaveBeenCalled();
+    expect(result).toEqual({backfilled: false});
+  });
+});
diff --git a/src/utils/backfill-bokante-mirrors.js b/src/utils/backfill-bokante-mirrors.js
new file mode 100644
index 0000000..17441c8
--- /dev/null
+++ b/src/utils/backfill-bokante-mirrors.js
@@ -0,0 +1,36 @@
+'use strict';
+
+const bokanteMastodon = require('./bokante-mastodon');
+
+async function backfillBokanteMirror({strapi}) {
+  const [parole] = await strapi.db.query('api::parole.parole').findMany({
+    where: {
+      publishedAt: {$notNull: true},
+      bokanteStatusId: {$null: true}
+    },
+    orderBy: {publishedAt: 'asc'},
+    limit: 1
+  });
+
+  if (!parole) {
+    return {backfilled: false};
+  }
+
+  try {
+    const status = await bokanteMastodon.createStatus(
+      `"${parole.titre}" — à (re)découvrir sur pawol.nu\n${process.env.WEBSITE_URL}/paroles/${parole.slug}`
+    );
+
+    await strapi.db.query('api::parole.parole').updateMany({
+      where: {documentId: parole.documentId},
+      data: {bokanteStatusId: status.id}
+    });
+
+    return {backfilled: true, slug: parole.slug};
+  } catch (err) {
+    strapi.log.error(`Backfill bokante (${parole.slug}) : ${err.message}`);
+    return {backfilled: false};
+  }
+}
+
+module.exports = {backfillBokanteMirror};