diff --git a/specification/resources/resource-manager/Microsoft.Solutions/stable/2019-07-01/managedapplications.json b/specification/resources/resource-manager/Microsoft.Solutions/stable/2019-07-01/managedapplications.json
index e489af41e804..6a3432f615ea 100644
--- a/specification/resources/resource-manager/Microsoft.Solutions/stable/2019-07-01/managedapplications.json
+++ b/specification/resources/resource-manager/Microsoft.Solutions/stable/2019-07-01/managedapplications.json
@@ -1629,10 +1629,12 @@
     "userAssignedResourceIdentity": {
       "properties": {
         "principalId": {
+          "readOnly": true,
           "type": "string",
           "description": "The principal id of user assigned identity."
         },
         "tenantId": {
+          "readOnly": true,
           "type": "string",
           "description": "The tenant id of user assigned identity."
         }