diff --git a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2021-07-01/machineLearningServices.json b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2021-07-01/machineLearningServices.json
index 67612025d29f..d0a2f26268ad 100644
--- a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2021-07-01/machineLearningServices.json
+++ b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2021-07-01/machineLearningServices.json
@@ -4870,7 +4870,6 @@
     "InstanceTypeSchema": {
       "type": "object",
       "description": "Instance type schema.",
-      "additionalProperties": false,
       "properties": {
           "nodeSelector": {
             "type": "object",
@@ -4881,7 +4880,6 @@
           },
           "resources": {
             "type": "object",
-            "additionalProperties": false,
             "description": "Resource requests/limits for this instance type",
             "properties": {
               "requests": {