diff --git a/manifests/crd-v1.yaml b/manifests/crd-v1.yaml
new file mode 100644
index 00000000..9613c3a9
--- /dev/null
+++ b/manifests/crd-v1.yaml
@@ -0,0 +1,58 @@
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: mxjobs.kubeflow.org
+spec:
+  group: kubeflow.org
+  version: v1
+  scope: Namespaced
+  names:
+    kind: MXJob
+    singular: mxjob
+    plural: mxjobs
+  subresources:
+    status: {}
+  validation:
+    openAPIV3Schema:
+      properties:
+        spec:
+          properties:
+            mxReplicaSpecs:
+              properties:
+                # The validation works when the configuration contains
+                # `Worker`, `Server`, `Scheduler`, 
+                # `TunerTracker`, `TunerServer`, `Tuner`,
+                # Otherwise it will not be validated.
+                Scheduler:
+                  properties:
+                    replicas:
+                      type: integer
+                      minimum: 1
+                      maximum: 1
+                Worker:
+                  properties:
+                    replicas:
+                      type: integer
+                      minimum: 1
+                Server:
+                  properties:
+                    replicas:
+                      type: integer
+                      minimum: 1
+                TunerTracker:
+                  properties:
+                    replicas:
+                      type: integer
+                      minimum: 1
+                      maximum: 1
+                TunerServer:
+                  properties:
+                    replicas:
+                      type: integer
+                      minimum: 1
+                Tuner:
+                  properties:
+                    replicas:
+                      type: integer
+                      minimum: 1
+                      maximum: 1
diff --git a/pkg/controller.v1/mxnet/job.go b/pkg/controller.v1/mxnet/job.go
index b822de15..d8830be4 100644
--- a/pkg/controller.v1/mxnet/job.go
+++ b/pkg/controller.v1/mxnet/job.go
@@ -62,7 +62,7 @@ func (tc *MXController) addMXJob(obj interface{}) {
 					logger.Errorf("Could not set nested field: %v", err1)
 				}
 				logger.Infof("Updating the job to; %+v", un.Object)
-				err = client.Update(un, mxv1.Plural)
+				err = client.UpdateStatus(un, mxv1.Plural)
 				if err != nil {
 					logger.Errorf("Could not update the MXJob; %v", err)
 				}
diff --git a/pkg/controller.v1/mxnet/status.go b/pkg/controller.v1/mxnet/status.go
index f91ea629..61aa3aec 100644
--- a/pkg/controller.v1/mxnet/status.go
+++ b/pkg/controller.v1/mxnet/status.go
@@ -128,7 +128,7 @@ func updateStatusSingle(mxjob *mxv1.MXJob, rtype mxv1.MXReplicaType, replicas in
 
 // updateMXJobStatus updates the status of the given MXJob.
 func (tc *MXController) updateMXJobStatus(mxjob *mxv1.MXJob) error {
-	_, err := tc.mxJobClientSet.KubeflowV1().MXJobs(mxjob.Namespace).Update(mxjob)
+	_, err := tc.mxJobClientSet.KubeflowV1().MXJobs(mxjob.Namespace).UpdateStatus(mxjob)
 	return err
 }
 
diff --git a/pkg/util/k8sutil/client.go b/pkg/util/k8sutil/client.go
index 05e46db2..124f80a0 100644
--- a/pkg/util/k8sutil/client.go
+++ b/pkg/util/k8sutil/client.go
@@ -80,3 +80,17 @@ func (c *CRDRestClient) Update(obj *metav1unstructured.Unstructured, plural stri
 	}
 	return err
 }
+
+func (c *CRDRestClient) UpdateStatus(obj *metav1unstructured.Unstructured, plural string) error {
+	logger := mxlogger.LoggerForUnstructured(obj, obj.GetKind())
+	if plural == "" {
+		logger.Errorf("Could not issue update because plural not set.")
+		return fmt.Errorf("plural must be set")
+	}
+	r := c.restcli.Put().Resource(plural).Namespace(obj.GetNamespace()).Name(obj.GetName()).SubResource("status").Body(obj)
+	_, err := r.DoRaw()
+	if err != nil {
+		logger.Errorf("Could not issue update using URL: %v; error; %v", r.URL().String(), err)
+	}
+	return err
+}
\ No newline at end of file