diff --git a/storagetransfer/composer.json b/storagetransfer/composer.json
index ddb8648454..c4c7b78edb 100644
--- a/storagetransfer/composer.json
+++ b/storagetransfer/composer.json
@@ -1,6 +1,6 @@
 {
     "require": {
-    	"google/cloud-storage-transfer": "^1.0",
+        "google/cloud-storage-transfer": "^1.4",
         "paragonie/random_compat": "^9.0.0"
     },
     "require-dev": {
diff --git a/storagetransfer/src/quickstart.php b/storagetransfer/src/quickstart.php
index 2fcee93d38..85383317cd 100644
--- a/storagetransfer/src/quickstart.php
+++ b/storagetransfer/src/quickstart.php
@@ -18,11 +18,13 @@
 namespace Google\Cloud\Samples\StorageTransfer;
 
 # [START storagetransfer_quickstart]
-use Google\Cloud\StorageTransfer\V1\StorageTransferServiceClient;
+use Google\Cloud\StorageTransfer\V1\Client\StorageTransferServiceClient;
+use Google\Cloud\StorageTransfer\V1\CreateTransferJobRequest;
+use Google\Cloud\StorageTransfer\V1\GcsData;
+use Google\Cloud\StorageTransfer\V1\RunTransferJobRequest;
 use Google\Cloud\StorageTransfer\V1\TransferJob;
 use Google\Cloud\StorageTransfer\V1\TransferJob\Status;
 use Google\Cloud\StorageTransfer\V1\TransferSpec;
-use Google\Cloud\StorageTransfer\V1\GcsData;
 
 /**
  * Creates and runs a transfer job between two GCS buckets
@@ -46,8 +48,13 @@ function quickstart($projectId, $sourceGcsBucketName, $sinkGcsBucketName)
     ]);
 
     $client = new StorageTransferServiceClient();
-    $response = $client->createTransferJob($transferJob);
-    $client->runTransferJob($response->getName(), $projectId);
+    $request = (new CreateTransferJobRequest())
+        ->setTransferJob($transferJob);
+    $response = $client->createTransferJob($request);
+    $request2 = (new RunTransferJobRequest())
+        ->setJobName($response->getName())
+        ->setProjectId($projectId);
+    $client->runTransferJob($request2);
 
     printf('Created and ran transfer job from %s to %s with name %s ' . PHP_EOL, $sourceGcsBucketName, $sinkGcsBucketName, $response->getName());
 }
diff --git a/storagetransfer/test/StorageTransferTest.php b/storagetransfer/test/StorageTransferTest.php
index e31a206b2d..c23060f6e0 100644
--- a/storagetransfer/test/StorageTransferTest.php
+++ b/storagetransfer/test/StorageTransferTest.php
@@ -18,10 +18,12 @@
 namespace Google\Cloud\Samples\StorageTransfer;
 
 use Google\Cloud\Storage\StorageClient;
-use Google\Cloud\StorageTransfer\V1\StorageTransferServiceClient;
+use Google\Cloud\StorageTransfer\V1\Client\StorageTransferServiceClient;
+use Google\Cloud\StorageTransfer\V1\GetGoogleServiceAccountRequest;
+use Google\Cloud\StorageTransfer\V1\TransferJob;
 use Google\Cloud\StorageTransfer\V1\TransferJob\Status;
+use Google\Cloud\StorageTransfer\V1\UpdateTransferJobRequest;
 use Google\Cloud\TestUtils\TestTrait;
-use Google\Cloud\StorageTransfer\V1\TransferJob;
 use PHPUnit\Framework\TestCase;
 
 class StorageTransferTest extends TestCase
@@ -70,13 +72,19 @@ public function testQuickstart()
             'name' => $jobName,
             'status' => Status::DELETED
         ]);
+        $request = (new UpdateTransferJobRequest())
+            ->setJobName($jobName)
+            ->setProjectId(self::$projectId)
+            ->setTransferJob($transferJob);
 
-        self::$sts->updateTransferJob($jobName, self::$projectId, $transferJob);
+        self::$sts->updateTransferJob($request);
     }
 
     private static function grantStsPermissions($bucket)
     {
-        $googleServiceAccount = self::$sts->getGoogleServiceAccount(self::$projectId);
+        $request2 = (new GetGoogleServiceAccountRequest())
+            ->setProjectId(self::$projectId);
+        $googleServiceAccount = self::$sts->getGoogleServiceAccount($request2);
         $email = $googleServiceAccount->getAccountEmail();
         $members = ['serviceAccount:' . $email];