diff --git a/login_history.info.yml b/login_history.info.yml
index 37e2648..9dfba3d 100644
--- a/login_history.info.yml
+++ b/login_history.info.yml
@@ -1,5 +1,6 @@
 name: Login History
 description: A history of the site's user logins.
 core: 8.x
+core_version_requirement: ^8 || ^9
 type: module
 configure: login_history.report
diff --git a/login_history.module b/login_history.module
index b21861f..eb0ac4e 100644
--- a/login_history.module
+++ b/login_history.module
@@ -35,7 +35,7 @@ function login_history_user_login(User $account) {
   }
 
   // Now save the user's current login timestamp to login_history.
-  db_insert('login_history')
+  \Drupal::database()->insert('login_history')
     ->fields([
       'uid' => $account->id(),
       'login' => $account->getLastLoginTime(),
@@ -63,7 +63,7 @@ function login_history_last_login(AccountInterface $account = NULL) {
   if ($account->isAnonymous()) {
     return FALSE;
   }
-  $last_login = db_query("SELECT login, hostname, one_time, user_agent
+  $last_login = \Drupal::database()->query("SELECT login, hostname, one_time, user_agent
                    FROM {login_history}
                    WHERE uid = :uid
                    ORDER BY login DESC
diff --git a/src/Controller/LoginHistoryController.php b/src/Controller/LoginHistoryController.php
index 79fc3f6..a9df464 100644
--- a/src/Controller/LoginHistoryController.php
+++ b/src/Controller/LoginHistoryController.php
@@ -4,6 +4,7 @@ namespace Drupal\login_history\Controller;
 
 use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Controller\ControllerBase;
+use Drupal\Core\Database\Connection;
 use Drupal\Core\Datetime\DateFormatterInterface;
 use Drupal\user\UserInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -14,6 +15,13 @@ use Drupal\Core\Entity\EntityTypeManagerInterface;
  */
 class LoginHistoryController extends ControllerBase {
 
+  /**
+   * The database connection.
+   *
+   * @var \Drupal\Core\Database\Connection
+   */
+  protected $database;
+
   /**
    * Drupal\Core\Entity\EntityTypeManagerInterface definition.
    *
@@ -28,10 +36,13 @@ class LoginHistoryController extends ControllerBase {
    *   The date formatter service.
    * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
    *   The entity type manager.
+   *  @param \Drupal\Core\Database\Connection $database
+   *   The database connection.
    */
-  public function __construct(DateFormatterInterface $date_formatter, EntityTypeManagerInterface $entity_type_manager) {
+  public function __construct(DateFormatterInterface $date_formatter, EntityTypeManagerInterface $entity_type_manager, Connection $database) {
     $this->dateFormatter = $date_formatter;
     $this->entityTypeManager = $entity_type_manager;
+    $this->database = $database;
   }
 
   /**
@@ -40,7 +51,8 @@ class LoginHistoryController extends ControllerBase {
   public static function create(ContainerInterface $container) {
     return new static(
       $container->get('date.formatter'),
-      $container->get('entity_type.manager')
+      $container->get('entity_type.manager'),
+      $container->get('database')
     );
   }
 
@@ -62,7 +74,7 @@ class LoginHistoryController extends ControllerBase {
       ['data' => $this->t('User Agent')],
     ];
 
-    $query = db_select('login_history', 'lh')
+    $query = $this->database->select('login_history', 'lh')
       ->extend('Drupal\Core\Database\Query\TableSortExtender')
       ->extend('Drupal\Core\Database\Query\PagerSelectExtender');
 
@@ -109,7 +121,7 @@ class LoginHistoryController extends ControllerBase {
       foreach ($history as $entry) {
         $rows[] = [
           $this->dateFormatter->format($entry->login, 'small'),
-          $users[$entry->uid]->getUsername(),
+          $users[$entry->uid]->getAccountName(),
           $entry->hostname,
           empty($entry->one_time) ? $this->t('Regular login') : $this->t('One-time login'),
           $entry->user_agent,