diff --git a/db/migrate/20241009155037_add_last_avis_piece_jointe_updated_at.rb b/db/migrate/20241009155037_add_last_avis_piece_jointe_updated_at.rb
new file mode 100644
index 000000000..411e59f2a
--- /dev/null
+++ b/db/migrate/20241009155037_add_last_avis_piece_jointe_updated_at.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddLastAvisPieceJointeUpdatedAt < ActiveRecord::Migration[7.0]
+  def change
+    add_column :dossiers, :last_avis_piece_jointe_updated_at, :datetime
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index bdb19f2c4..07f4bc83b 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -495,6 +495,7 @@ ActiveRecord::Schema[7.0].define(version: 2024_10_14_084333) do
     t.string "hidden_by_reason"
     t.datetime "hidden_by_user_at", precision: nil
     t.datetime "identity_updated_at", precision: nil
+    t.datetime "last_avis_piece_jointe_updated_at"
     t.datetime "last_avis_updated_at", precision: nil
     t.datetime "last_champ_piece_jointe_updated_at"
     t.datetime "last_champ_private_updated_at", precision: nil