diff --git a/OpenAPI/TS28541_5GcNrm.yaml b/OpenAPI/TS28541_5GcNrm.yaml
index b3a1380d496fe31a86a3d0bb32be7b28ee99eefe..ca3c0e415be01673bc883cfe7f55f512bad226dc 100755
--- a/OpenAPI/TS28541_5GcNrm.yaml
+++ b/OpenAPI/TS28541_5GcNrm.yaml
@@ -417,7 +417,10 @@ components:
         authzInfo:
           type: string
         hostAddr:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/Host'
+          type: array
+          uniqueItems: true
+          items:
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/Host'
         allowedPLMNs:
           type: array
           uniqueItems: true
@@ -537,11 +540,13 @@ components:
           minItems: 1
         vendorId:
           $ref: '#/components/schemas/VendorId'
-        nfServices:
-          type: array
-          uniqueItems: true
-          items:
+        nfServiceList:
+          description: >
+            A map (list of key-value pairs) where serviceInstanceId serves as key of NFService
+          type: object
+          additionalProperties:
             $ref: '#/components/schemas/NFService'
+          minProperties: 1
         supportedVendorSpecificFeatures:
           description: >
             A map (list of key-value pairs) where IANA-assigned "SMI Network Management Private Enterprise Codes" serves as key