diff --git a/OpenAPI/TS28541_SliceNrm.yaml b/OpenAPI/TS28541_SliceNrm.yaml
index 2ea8a2b41973b2b6806e8982a56e4dbc1ae7717b..d192768d7b368f5e133a92085a76ec88ed0ab314 100755
--- a/OpenAPI/TS28541_SliceNrm.yaml
+++ b/OpenAPI/TS28541_SliceNrm.yaml
@@ -60,13 +60,6 @@ components:
         - SHARED
         - NON-SHARED
 
-    ServiceType:
-      type: string
-      enum:
-        - eMBB
-        - RLLC
-        - MIoT
-        - V2X
     SliceSimultaneousUse:
       type: string
       enum:
@@ -377,8 +370,8 @@ components:
           type: integer
         reliability:
           type: number
-        serviceType:
-          $ref: '#/components/schemas/ServiceType'
+        sST:
+          $ref: 'TS28541_NrNrm.yaml#/components/schemas/Sst'
         dLMaxPktSize:
           type: integer
         uLMaxPktSize:
@@ -452,8 +445,8 @@ components:
           type: integer
         reliability:
           type: number
-        serviceType:
-          $ref: '#/components/schemas/ServiceType'
+        sST:
+          $ref: 'TS28541_NrNrm.yaml#/components/schemas/Sst'
         dLDeterministicComm:
           $ref: '#/components/schemas/DeterministicComm'
         uLDeterministicComm: