diff --git a/apigee/medicamentos-venta.json b/apigee/medicamentos-venta.json
index b1d6bbd..ae8a317 100644
--- a/apigee/medicamentos-venta.json
+++ b/apigee/medicamentos-venta.json
@@ -52,7 +52,7 @@
             "name": "codigoEAN",
             "in": "query",
             "description": "Codigo EAN del producto",
-            "required": true,
+            "required": false,
             "schema": {
               "type": "string"
             }
@@ -111,7 +111,7 @@
         "properties": {
             "nombre": {
               "type": "string",
-              "description": "Nombre.",
+              "description": "Nombre."
             },
             "codigo": {
               "type": "string",
@@ -242,7 +242,7 @@
                 "type": "string",
                 "format": "date-time",
                 "description": "Fecha fin precio especial."
-              },
+              }
             }
           }
         }