diff --git a/api-v3/test/unit/f6-1-operator-cancellation-ux.test.ts b/api-v3/test/unit/f6-1-operator-cancellation-ux.test.ts
index f8290a6..0a0778e 100644
--- a/api-v3/test/unit/f6-1-operator-cancellation-ux.test.ts
+++ b/api-v3/test/unit/f6-1-operator-cancellation-ux.test.ts
@@ -33,11 +33,12 @@ test('F6.1 WEB cancellation requires an explicit audited reason and is available
   assert.match(editor, /cancelReason/);
   assert.match(editor, /<textarea/);
   assert.match(editor, /cancelReason\.trim\(\)\.length < 10/);
+  assert.match(editor, /maxLength=\{500\}/);
   assert.match(editor, /'DRAFT', 'PLANNED', 'IN_PROGRESS'/);
   assert.match(editor, /Confirmar cancelación/);
   assert.match(controller, /@Post\(':id\/cancel'\)/);
   assert.match(dto, /@MinLength\(10\)/);
-  assert.match(dto, /@MaxLength\(500\)/);
+  assert.match(dto, /@MaxLength\(4000\)/);
   assert.match(lifecycle, /\['DRAFT','PLANNED','IN_PROGRESS'\]/);
   assert.match(lifecycle, /INSPECTION_HAS_SEALED_ACT/);
 });