diff --git a/lib/services/ngsi/entities-NGSI-v2.js b/lib/services/ngsi/entities-NGSI-v2.js
index d593b50a6..38fa0c36f 100644
--- a/lib/services/ngsi/entities-NGSI-v2.js
+++ b/lib/services/ngsi/entities-NGSI-v2.js
@@ -352,7 +352,8 @@ function sendUpdateValueNgsi2(entityName, attributes, typeInformation, token, ca
     let url = '/v2/op/update';
 
     if (typeInformation && typeInformation.type) {
-        payload.entities[0].type = typeInformation.type;
+        // CB entity type should be always a String
+        payload.entities[0].type = String(typeInformation.type);
     }
 
     payload.actionType = 'append';
@@ -833,10 +834,10 @@ function sendUpdateValueNgsi2(entityName, attributes, typeInformation, token, ca
                         payload
                     );
                 }
-
+                // CB entity id and type should be always a String
                 let newEntity = {
-                    id: newEntityName ? newEntityName : payload.entities[0].id,
-                    type: attr.entity_type ? attr.entity_type : payload.entities[0].type
+                    id: newEntityName ? String(newEntityName) : String(payload.entities[0].id),
+                    type: attr.entity_type ? String(attr.entity_type) : String(payload.entities[0].type)
                 };
                 // Check if there is already a newEntity created
                 const alreadyEntity = payload.entities.find((entity) => {
diff --git a/package.json b/package.json
index 821ede4b0..6ebd2463d 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "iotagent-node-lib",
   "license": "AGPL-3.0-only",
   "description": "IoT Agent library to interface with NGSI Context Broker",
-  "version": "3.4.2",
+  "version": "3.4.3",
   "homepage": "https://github.com/telefonicaid/iotagent-node-lib",
   "keywords": [
     "fiware",