diff --git a/README.md b/README.md
index b4ba24f3d..e7635d06d 100644
--- a/README.md
+++ b/README.md
@@ -45,13 +45,13 @@ implementation 'com.google.cloud:google-cloud-aiplatform'
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-aiplatform:2.0.2'
+implementation 'com.google.cloud:google-cloud-aiplatform:2.1.0'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-aiplatform" % "2.0.2"
+libraryDependencies += "com.google.cloud" % "google-cloud-aiplatform" % "2.1.0"
 ```
 
 ## Authentication
diff --git a/google-cloud-aiplatform/src/main/java/com/google/cloud/aiplatform/v1/JobServiceClient.java b/google-cloud-aiplatform/src/main/java/com/google/cloud/aiplatform/v1/JobServiceClient.java
index 975e9827e..f8536fa58 100644
--- a/google-cloud-aiplatform/src/main/java/com/google/cloud/aiplatform/v1/JobServiceClient.java
+++ b/google-cloud-aiplatform/src/main/java/com/google/cloud/aiplatform/v1/JobServiceClient.java
@@ -3230,7 +3230,23 @@ public final ListModelDeploymentMonitoringJobsPagedResponse listModelDeploymentM
    *
    * @param modelDeploymentMonitoringJob Required. The model monitoring configuration which replaces
    *     the resource on the server.
-   * @param updateMask Required. The update mask applies to the resource.
+   * @param updateMask Required. The update mask is used to specify the fields to be overwritten in
+   *     the ModelDeploymentMonitoringJob resource by the update. The fields specified in the
+   *     update_mask are relative to the resource, not the full request. A field will be overwritten
+   *     if it is in the mask. If the user does not provide a mask then only the non-empty fields
+   *     present in the request will be overwritten. Set the update_mask to `*` to override all
+   *     fields. For the objective config, the user can either provide the update mask for
+   *     model_deployment_monitoring_objective_configs or any combination of its nested fields, such
+   *     as: model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+   *     <p>Updatable fields:
+   *     <p>&#42; `display_name` &#42; `model_deployment_monitoring_schedule_config` &#42;
+   *     `model_monitoring_alert_config` &#42; `logging_sampling_strategy` &#42; `labels` &#42;
+   *     `log_ttl` &#42; `enable_monitoring_pipeline_logs` . and &#42;
+   *     `model_deployment_monitoring_objective_configs` . or &#42;
+   *     `model_deployment_monitoring_objective_configs.objective_config.training_dataset` &#42;
+   *     `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+   *     &#42;
+   *     `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
    * @throws com.google.api.gax.rpc.ApiException if the remote call fails
    */
   public final OperationFuture<
diff --git a/proto-google-cloud-aiplatform-v1/src/main/java/com/google/cloud/aiplatform/v1/UpdateModelDeploymentMonitoringJobRequest.java b/proto-google-cloud-aiplatform-v1/src/main/java/com/google/cloud/aiplatform/v1/UpdateModelDeploymentMonitoringJobRequest.java
index b023378eb..2f87417a9 100644
--- a/proto-google-cloud-aiplatform-v1/src/main/java/com/google/cloud/aiplatform/v1/UpdateModelDeploymentMonitoringJobRequest.java
+++ b/proto-google-cloud-aiplatform-v1/src/main/java/com/google/cloud/aiplatform/v1/UpdateModelDeploymentMonitoringJobRequest.java
@@ -202,7 +202,31 @@ public boolean hasModelDeploymentMonitoringJob() {
    *
    *
    * <pre>
-   * Required. The update mask applies to the resource.
+   * Required. The update mask is used to specify the fields to be overwritten in the
+   * ModelDeploymentMonitoringJob resource by the update.
+   * The fields specified in the update_mask are relative to the resource, not
+   * the full request. A field will be overwritten if it is in the mask. If the
+   * user does not provide a mask then only the non-empty fields present in the
+   * request will be overwritten. Set the update_mask to `*` to override all
+   * fields.
+   * For the objective config, the user can either provide the update mask for
+   * model_deployment_monitoring_objective_configs or any combination of its
+   * nested fields, such as:
+   * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+   * Updatable fields:
+   *   * `display_name`
+   *   * `model_deployment_monitoring_schedule_config`
+   *   * `model_monitoring_alert_config`
+   *   * `logging_sampling_strategy`
+   *   * `labels`
+   *   * `log_ttl`
+   *   * `enable_monitoring_pipeline_logs`
+   * .  and
+   *   * `model_deployment_monitoring_objective_configs`
+   * .  or
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
    * </pre>
    *
    * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -218,7 +242,31 @@ public boolean hasUpdateMask() {
    *
    *
    * <pre>
-   * Required. The update mask applies to the resource.
+   * Required. The update mask is used to specify the fields to be overwritten in the
+   * ModelDeploymentMonitoringJob resource by the update.
+   * The fields specified in the update_mask are relative to the resource, not
+   * the full request. A field will be overwritten if it is in the mask. If the
+   * user does not provide a mask then only the non-empty fields present in the
+   * request will be overwritten. Set the update_mask to `*` to override all
+   * fields.
+   * For the objective config, the user can either provide the update mask for
+   * model_deployment_monitoring_objective_configs or any combination of its
+   * nested fields, such as:
+   * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+   * Updatable fields:
+   *   * `display_name`
+   *   * `model_deployment_monitoring_schedule_config`
+   *   * `model_monitoring_alert_config`
+   *   * `logging_sampling_strategy`
+   *   * `labels`
+   *   * `log_ttl`
+   *   * `enable_monitoring_pipeline_logs`
+   * .  and
+   *   * `model_deployment_monitoring_objective_configs`
+   * .  or
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
    * </pre>
    *
    * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -234,7 +282,31 @@ public com.google.protobuf.FieldMask getUpdateMask() {
    *
    *
    * <pre>
-   * Required. The update mask applies to the resource.
+   * Required. The update mask is used to specify the fields to be overwritten in the
+   * ModelDeploymentMonitoringJob resource by the update.
+   * The fields specified in the update_mask are relative to the resource, not
+   * the full request. A field will be overwritten if it is in the mask. If the
+   * user does not provide a mask then only the non-empty fields present in the
+   * request will be overwritten. Set the update_mask to `*` to override all
+   * fields.
+   * For the objective config, the user can either provide the update mask for
+   * model_deployment_monitoring_objective_configs or any combination of its
+   * nested fields, such as:
+   * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+   * Updatable fields:
+   *   * `display_name`
+   *   * `model_deployment_monitoring_schedule_config`
+   *   * `model_monitoring_alert_config`
+   *   * `logging_sampling_strategy`
+   *   * `labels`
+   *   * `log_ttl`
+   *   * `enable_monitoring_pipeline_logs`
+   * .  and
+   *   * `model_deployment_monitoring_objective_configs`
+   * .  or
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
    * </pre>
    *
    * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -850,7 +922,31 @@ public Builder clearModelDeploymentMonitoringJob() {
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -865,7 +961,31 @@ public boolean hasUpdateMask() {
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -886,7 +1006,31 @@ public com.google.protobuf.FieldMask getUpdateMask() {
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -909,7 +1053,31 @@ public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -929,7 +1097,31 @@ public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForVal
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -954,7 +1146,31 @@ public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -975,7 +1191,31 @@ public Builder clearUpdateMask() {
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -990,7 +1230,31 @@ public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -1009,7 +1273,31 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
      *
      *
      * <pre>
-     * Required. The update mask applies to the resource.
+     * Required. The update mask is used to specify the fields to be overwritten in the
+     * ModelDeploymentMonitoringJob resource by the update.
+     * The fields specified in the update_mask are relative to the resource, not
+     * the full request. A field will be overwritten if it is in the mask. If the
+     * user does not provide a mask then only the non-empty fields present in the
+     * request will be overwritten. Set the update_mask to `*` to override all
+     * fields.
+     * For the objective config, the user can either provide the update mask for
+     * model_deployment_monitoring_objective_configs or any combination of its
+     * nested fields, such as:
+     * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+     * Updatable fields:
+     *   * `display_name`
+     *   * `model_deployment_monitoring_schedule_config`
+     *   * `model_monitoring_alert_config`
+     *   * `logging_sampling_strategy`
+     *   * `labels`
+     *   * `log_ttl`
+     *   * `enable_monitoring_pipeline_logs`
+     * .  and
+     *   * `model_deployment_monitoring_objective_configs`
+     * .  or
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+     *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
      * </pre>
      *
      * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
diff --git a/proto-google-cloud-aiplatform-v1/src/main/java/com/google/cloud/aiplatform/v1/UpdateModelDeploymentMonitoringJobRequestOrBuilder.java b/proto-google-cloud-aiplatform-v1/src/main/java/com/google/cloud/aiplatform/v1/UpdateModelDeploymentMonitoringJobRequestOrBuilder.java
index 3a6ee79a3..63f7856bd 100644
--- a/proto-google-cloud-aiplatform-v1/src/main/java/com/google/cloud/aiplatform/v1/UpdateModelDeploymentMonitoringJobRequestOrBuilder.java
+++ b/proto-google-cloud-aiplatform-v1/src/main/java/com/google/cloud/aiplatform/v1/UpdateModelDeploymentMonitoringJobRequestOrBuilder.java
@@ -72,7 +72,31 @@ public interface UpdateModelDeploymentMonitoringJobRequestOrBuilder
    *
    *
    * <pre>
-   * Required. The update mask applies to the resource.
+   * Required. The update mask is used to specify the fields to be overwritten in the
+   * ModelDeploymentMonitoringJob resource by the update.
+   * The fields specified in the update_mask are relative to the resource, not
+   * the full request. A field will be overwritten if it is in the mask. If the
+   * user does not provide a mask then only the non-empty fields present in the
+   * request will be overwritten. Set the update_mask to `*` to override all
+   * fields.
+   * For the objective config, the user can either provide the update mask for
+   * model_deployment_monitoring_objective_configs or any combination of its
+   * nested fields, such as:
+   * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+   * Updatable fields:
+   *   * `display_name`
+   *   * `model_deployment_monitoring_schedule_config`
+   *   * `model_monitoring_alert_config`
+   *   * `logging_sampling_strategy`
+   *   * `labels`
+   *   * `log_ttl`
+   *   * `enable_monitoring_pipeline_logs`
+   * .  and
+   *   * `model_deployment_monitoring_objective_configs`
+   * .  or
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
    * </pre>
    *
    * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -85,7 +109,31 @@ public interface UpdateModelDeploymentMonitoringJobRequestOrBuilder
    *
    *
    * <pre>
-   * Required. The update mask applies to the resource.
+   * Required. The update mask is used to specify the fields to be overwritten in the
+   * ModelDeploymentMonitoringJob resource by the update.
+   * The fields specified in the update_mask are relative to the resource, not
+   * the full request. A field will be overwritten if it is in the mask. If the
+   * user does not provide a mask then only the non-empty fields present in the
+   * request will be overwritten. Set the update_mask to `*` to override all
+   * fields.
+   * For the objective config, the user can either provide the update mask for
+   * model_deployment_monitoring_objective_configs or any combination of its
+   * nested fields, such as:
+   * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+   * Updatable fields:
+   *   * `display_name`
+   *   * `model_deployment_monitoring_schedule_config`
+   *   * `model_monitoring_alert_config`
+   *   * `logging_sampling_strategy`
+   *   * `labels`
+   *   * `log_ttl`
+   *   * `enable_monitoring_pipeline_logs`
+   * .  and
+   *   * `model_deployment_monitoring_objective_configs`
+   * .  or
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
    * </pre>
    *
    * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -98,7 +146,31 @@ public interface UpdateModelDeploymentMonitoringJobRequestOrBuilder
    *
    *
    * <pre>
-   * Required. The update mask applies to the resource.
+   * Required. The update mask is used to specify the fields to be overwritten in the
+   * ModelDeploymentMonitoringJob resource by the update.
+   * The fields specified in the update_mask are relative to the resource, not
+   * the full request. A field will be overwritten if it is in the mask. If the
+   * user does not provide a mask then only the non-empty fields present in the
+   * request will be overwritten. Set the update_mask to `*` to override all
+   * fields.
+   * For the objective config, the user can either provide the update mask for
+   * model_deployment_monitoring_objective_configs or any combination of its
+   * nested fields, such as:
+   * model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+   * Updatable fields:
+   *   * `display_name`
+   *   * `model_deployment_monitoring_schedule_config`
+   *   * `model_monitoring_alert_config`
+   *   * `logging_sampling_strategy`
+   *   * `labels`
+   *   * `log_ttl`
+   *   * `enable_monitoring_pipeline_logs`
+   * .  and
+   *   * `model_deployment_monitoring_objective_configs`
+   * .  or
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+   *   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
    * </pre>
    *
    * <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
diff --git a/proto-google-cloud-aiplatform-v1/src/main/proto/google/cloud/aiplatform/v1/job_service.proto b/proto-google-cloud-aiplatform-v1/src/main/proto/google/cloud/aiplatform/v1/job_service.proto
index b1c467f32..0c164c797 100644
--- a/proto-google-cloud-aiplatform-v1/src/main/proto/google/cloud/aiplatform/v1/job_service.proto
+++ b/proto-google-cloud-aiplatform-v1/src/main/proto/google/cloud/aiplatform/v1/job_service.proto
@@ -923,7 +923,33 @@ message UpdateModelDeploymentMonitoringJobRequest {
   // server.
   ModelDeploymentMonitoringJob model_deployment_monitoring_job = 1 [(google.api.field_behavior) = REQUIRED];
 
-  // Required. The update mask applies to the resource.
+  // Required. The update mask is used to specify the fields to be overwritten in the
+  // ModelDeploymentMonitoringJob resource by the update.
+  // The fields specified in the update_mask are relative to the resource, not
+  // the full request. A field will be overwritten if it is in the mask. If the
+  // user does not provide a mask then only the non-empty fields present in the
+  // request will be overwritten. Set the update_mask to `*` to override all
+  // fields.
+  // For the objective config, the user can either provide the update mask for
+  // model_deployment_monitoring_objective_configs or any combination of its
+  // nested fields, such as:
+  // model_deployment_monitoring_objective_configs.objective_config.training_dataset.
+  //
+  // Updatable fields:
+  //
+  //   * `display_name`
+  //   * `model_deployment_monitoring_schedule_config`
+  //   * `model_monitoring_alert_config`
+  //   * `logging_sampling_strategy`
+  //   * `labels`
+  //   * `log_ttl`
+  //   * `enable_monitoring_pipeline_logs`
+  // .  and
+  //   * `model_deployment_monitoring_objective_configs`
+  // .  or
+  //   * `model_deployment_monitoring_objective_configs.objective_config.training_dataset`
+  //   * `model_deployment_monitoring_objective_configs.objective_config.training_prediction_skew_detection_config`
+  //   * `model_deployment_monitoring_objective_configs.objective_config.prediction_drift_detection_config`
   google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
 }