diff --git a/core/tests/Drupal/TestSite/Commands/TestSiteTearDownCommand.php b/core/tests/Drupal/TestSite/Commands/TestSiteTearDownCommand.php
index 9e9f7ca964..4a6191f7d6 100644
--- a/core/tests/Drupal/TestSite/Commands/TestSiteTearDownCommand.php
+++ b/core/tests/Drupal/TestSite/Commands/TestSiteTearDownCommand.php
@@ -90,13 +90,8 @@ protected function tearDown($db_prefix, $db_url, $app_root) {
     Database::addConnectionInfo(__CLASS__, 'default', $database);
 
     // Remove all the tables.
-    $connection = Database::getConnection('default', __CLASS__);
-    $tables = $connection->schema()->findTables('%');
-    foreach ($tables as $table) {
-      if ($connection->schema()->dropTable($table)) {
-        unset($tables[$table]);
-      }
-    }
+    $schema = Database::getConnection('default', __CLASS__)->schema();
+    array_walk($schema->findTables('%'), [$schema, 'dropTable']);
 
     // Delete test site directory.
     $test_database = new TestDatabase($db_prefix);
diff --git a/core/tests/Drupal/TestSite/TestSiteApplication.php b/core/tests/Drupal/TestSite/TestSiteApplication.php
index 02359fbf64..542c580ef4 100644
--- a/core/tests/Drupal/TestSite/TestSiteApplication.php
+++ b/core/tests/Drupal/TestSite/TestSiteApplication.php
@@ -31,7 +31,7 @@ class TestSiteApplication extends Application {
    */
   public function __construct($autoloader) {
     $this->autoloader = $autoloader;
-    parent::__construct('test-site', '0.0.1');
+    parent::__construct('test-site', '0.1.0');
   }
 
   /**