diff --git a/src/SQLAdmin/SqlWorkloadCapturesStartReplayRequest.php b/src/SQLAdmin/SqlWorkloadCapturesStartReplayRequest.php
index 1c5fcfb3b49..89888ef8c1c 100644
--- a/src/SQLAdmin/SqlWorkloadCapturesStartReplayRequest.php
+++ b/src/SQLAdmin/SqlWorkloadCapturesStartReplayRequest.php
@@ -23,7 +23,7 @@ class SqlWorkloadCapturesStartReplayRequest extends \Google\Model
   protected $startWorkloadReplayContextDataType = '';
 
   /**
-   * Optional. Contains details about the start workload replay operation.
+   * Required. Contains details about the start workload replay operation.
    *
    * @param StartWorkloadReplayContext $startWorkloadReplayContext
    */
diff --git a/src/SQLAdmin/SqlWorkloadCapturesStopReplayRequest.php b/src/SQLAdmin/SqlWorkloadCapturesStopReplayRequest.php
index 0986eb1e5b0..524932255ca 100644
--- a/src/SQLAdmin/SqlWorkloadCapturesStopReplayRequest.php
+++ b/src/SQLAdmin/SqlWorkloadCapturesStopReplayRequest.php
@@ -23,7 +23,7 @@ class SqlWorkloadCapturesStopReplayRequest extends \Google\Model
   protected $stopWorkloadReplayContextDataType = '';
 
   /**
-   * Optional. Contains details about the stop workload replay operation.
+   * Required. Contains details about the stop workload replay operation.
    *
    * @param StopWorkloadReplayContext $stopWorkloadReplayContext
    */