diff --git a/db/migrate/20221006161143_re_backfill_procedure_max_duree_conservation_dossiers.rb b/db/migrate/20221006161143_re_backfill_procedure_max_duree_conservation_dossiers.rb
new file mode 100644
index 000000000..9f02df086
--- /dev/null
+++ b/db/migrate/20221006161143_re_backfill_procedure_max_duree_conservation_dossiers.rb
@@ -0,0 +1,10 @@
+class ReBackfillProcedureMaxDureeConservationDossiers < ActiveRecord::Migration[6.1]
+  def change
+    Procedure.where(duree_conservation_etendue_par_ds: true).in_batches do |batch|
+      batch.update_all(max_duree_conservation_dossiers_dans_ds: Procedure::OLD_MAX_DUREE_CONSERVATION)
+    end
+    Procedure.where(duree_conservation_etendue_par_ds: false).in_batches do |batch|
+      batch.update_all(max_duree_conservation_dossiers_dans_ds: Procedure::NEW_MAX_DUREE_CONSERVATION)
+    end
+  end
+end