diff --git a/apigee/medicamentos-afiliado.json b/apigee/medicamentos-afiliado.json
index ebd35ac..eaf0beb 100644
--- a/apigee/medicamentos-afiliado.json
+++ b/apigee/medicamentos-afiliado.json
@@ -797,7 +797,7 @@
             "description": "Fecha inicial.",
             "required": true,
             "schema": {
-              "type": "number"
+              "type": "string",
             }
           },
           {
@@ -806,7 +806,7 @@
             "description": "Fecha final.",
             "required": true,
             "schema": {
-              "type": "number"
+              "type": "string"
             }
           }
         ],
@@ -888,7 +888,7 @@
             "description": "Tipo de identificacion del paciente.",
             "required": true,
             "schema": {
-              "type": "number"
+              "type": "string"
             }
           },
           {