diff --git a/OpenAPI/TS28532_ProvMnS.yaml b/OpenAPI/TS28532_ProvMnS.yaml
index 524ed909ad2a14b8119ac402cf2c1db3b3a1296d..0ddca88ba63372f3bc6921b43892c17878c2911e 100644
--- a/OpenAPI/TS28532_ProvMnS.yaml
+++ b/OpenAPI/TS28532_ProvMnS.yaml
@@ -234,6 +234,14 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/Resource'
+            application/vnd.3gpp.object-tree-hierarchical+json:
+              schema:
+                $ref: '#/components/schemas/Resource'
+            application/vnd.3gpp.object-tree-flat+json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Resource'
         default:
           description: Error case.
           content: