diff --git a/OpenAPI/TS28105_AiMlNrm.yaml b/OpenAPI/TS28105_AiMlNrm.yaml
index bab55f85eab043c974a5952dc5b62ae725f835f7..d97b91955794eb28f63dbcbc7f78e4734850c6fb 100644
--- a/OpenAPI/TS28105_AiMlNrm.yaml
+++ b/OpenAPI/TS28105_AiMlNrm.yaml
@@ -487,12 +487,17 @@ components:
                 runTimeContext:
                   $ref: '#/components/schemas/MLContext'
                 supportedPerformanceIndicators:
-                  $ref: '#/components/schemas/SupportedPerfIndicator'
+                  type: array
+                  uniqueItems: true
+                  items:
+                    $ref: '#/components/schemas/SupportedPerfIndicator'
+                  minItems: 1
                 mLCapabilitiesInfoList:
                   type: array
                   uniqueItems: true
                   items:
                     $ref: '#/components/schemas/MLCapabilityInfo'
+                  minItems: 1
                 retrainingEventsMonitorRef:
                   $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
                 sourceTrainedMLModelRef:
@@ -521,7 +526,11 @@ components:
               type: object
               properties:
                 memberMLModelRefList:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
+                  type: array
+                  uniqueItems: true
+                  items:
+                    $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
+                  minItems: 2
 
     ## 7.3a.4.1 IOC
     MLUpdateFunction-Single: