diff --git a/CHANGELOG.md b/CHANGELOG.md
index e856dd0..feeab18 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+v 1.27.1 [23-ene-2019]
+----------------------
+    - Error: Al cancelar nómina
+
+
 v 1.27.0 [17-ene-2019]
 ----------------------
     - Mejora: Permitir capturar folio manualmente
diff --git a/VERSION b/VERSION
index 5db08bf..08002f8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.27.0
+1.27.1
diff --git a/source/app/models/main.py b/source/app/models/main.py
index 86236ac..615c0de 100644
--- a/source/app/models/main.py
+++ b/source/app/models/main.py
@@ -8324,6 +8324,7 @@ class CfdiNomina(BaseModel):
             return {'ok': False, 'msg': msg}
 
         data, result = util.cancel_xml(auth, obj.uuid, certificado)
+
         if data['ok']:
             data['msg'] = 'Recibo cancelado correctamente'
             data['row']['estatus'] = 'Cancelado'
@@ -8331,7 +8332,7 @@ class CfdiNomina(BaseModel):
             obj.error = ''
             obj.cancelada = True
             obj.fecha_cancelacion = result['Fecha']
-            obj.acuse = result['Acuse']
+            obj.acuse = result['Acuse'] or ''
         else:
             obj.error = data['msg']
         obj.save()
diff --git a/source/app/settings.py b/source/app/settings.py
index d5bbb19..1f3bedc 100644
--- a/source/app/settings.py
+++ b/source/app/settings.py
@@ -47,7 +47,7 @@ except ImportError:
 
 
 DEBUG = DEBUG
-VERSION = '1.27.0'
+VERSION = '1.27.1'
 EMAIL_SUPPORT = ('soporte@empresalibre.net',)
 TITLE_APP = '{} v{}'.format(TITLE_APP, VERSION)