diff --git a/OpenAPI/TS28317_RanScNrm.yaml b/OpenAPI/TS28317_RanScNrm.yaml
index 3bc789c4f63762049aa766b59c0e715a52507d5c..39d8fa5b056b4199382d5567a69341223baab0a9 100644
--- a/OpenAPI/TS28317_RanScNrm.yaml
+++ b/OpenAPI/TS28317_RanScNrm.yaml
@@ -34,6 +34,7 @@ components:
         properties:
           nEInformation:
             type: array
+            uniqueItems: true
             items:
               $ref: '#/components/schemas/NEInfomration'
             description: >-