diff --git a/.travis.yml b/.travis.yml
index a2940ca..ee67398 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,9 +24,8 @@ env:
 
 before_install:
   - composer global require thunder/travis
-
 script:
-  - test-drupal-module
+  - test-drupal-project
 
 notifications:
   email: false
diff --git a/nexx_integration.info.yml b/nexx_integration.info.yml
index a6f2504..8764c30 100644
--- a/nexx_integration.info.yml
+++ b/nexx_integration.info.yml
@@ -2,7 +2,7 @@ name: Nexx video integration
 type: module
 description: 'Integration of nexxOMNIA and nexxPLAY'
 package: Field types
-core: 8.x
+core_version_requirement: ^8.7.7
 configure: nexx_integration.admin_settings
 
 dependencies:
diff --git a/nexx_integration.install b/nexx_integration.install
index 62ab526..68ed74b 100644
--- a/nexx_integration.install
+++ b/nexx_integration.install
@@ -6,6 +6,7 @@
  */
 
 use Drupal\Core\Database\Database;
+use Drupal\Core\File\FileSystemInterface;
 
 /**
  * Implements hook_schema().
@@ -46,7 +47,7 @@ function nexx_integration_schema() {
 function nexx_integration_install() {
   $source = drupal_get_path('module', 'nexx_integration') . '/images/icons';
   $destination = \Drupal::config('media.settings')->get('icon_base_uri');
-  file_prepare_directory($destination, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
+  \Drupal::service('file_system')->prepareDirectory($destination, FileSystemInterface::CREATE_DIRECTORY | FileSystemInterface::MODIFY_PERMISSIONS);
 
   $files = file_scan_directory($source, '/.*\.(svg|png|jpg|jpeg|gif)$/');
   foreach ($files as $file) {
@@ -57,7 +58,7 @@ function nexx_integration_install() {
     // referenced somewhere else. Since showing an error that it was not
     // possible to copy the files is also confusing, we silently do nothing.
     if (!file_exists($destination . DIRECTORY_SEPARATOR . $file->filename)) {
-      file_unmanaged_copy($file->uri, $destination, FILE_EXISTS_ERROR);
+      \Drupal::service('file_system')->copy($file->uri, $destination, FileSystemInterface::EXISTS_ERROR);
     }
   }
 }
diff --git a/nexx_integration.module b/nexx_integration.module
index e359fd1..09b5b9f 100644
--- a/nexx_integration.module
+++ b/nexx_integration.module
@@ -267,8 +267,8 @@ function nexx_integration_cron() {
   // Check videos, that could be activated.
   /** @var \Drupal\Core\Entity\Query\QueryInterface $ids */
   $ids = $storage->getQuery()
-    ->condition($video_field . '.validfrom_ssc', REQUEST_TIME, '<=')
-    ->condition($video_field . '.validto_ssc', REQUEST_TIME, '>')
+    ->condition($video_field . '.validfrom_ssc', \Drupal::time()->getRequestTime(), '<=')
+    ->condition($video_field . '.validto_ssc', \Drupal::time()->getRequestTime(), '>')
     ->condition("status", FALSE)
     ->execute();
 
@@ -285,7 +285,7 @@ function nexx_integration_cron() {
   /** @var \Drupal\Core\Entity\Query\QueryInterface $ids */
   $ids = $storage->getQuery()
     ->condition($video_field . '.validto_ssc', 0, '<>')
-    ->condition($video_field . '.validto_ssc', REQUEST_TIME, '<=')
+    ->condition($video_field . '.validto_ssc', \Drupal::time()->getRequestTime(), '<=')
     ->condition("status", TRUE)
     ->execute();
 
diff --git a/nexx_integration.services.yml b/nexx_integration.services.yml
index a478406..48a1afd 100644
--- a/nexx_integration.services.yml
+++ b/nexx_integration.services.yml
@@ -1,7 +1,7 @@
 services:
   nexx_integration.notification:
     class: Drupal\nexx_integration\NexxNotification
-    arguments: ['@config.factory', '@logger.factory', '@http_client', '@string_translation']
+    arguments: ['@config.factory', '@logger.factory', '@http_client', '@string_translation', '@messenger']
 
   nexx_integration.videomanager:
     class: Drupal\nexx_integration\VideoManagerService
diff --git a/src/Controller/OmniaController.php b/src/Controller/OmniaController.php
index 0af325f..9160392 100644
--- a/src/Controller/OmniaController.php
+++ b/src/Controller/OmniaController.php
@@ -6,6 +6,7 @@
 use Drupal\Core\Entity\EntityFieldManagerInterface;
 use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
 use Drupal\Core\Database\Connection;
+use Drupal\Core\File\FileSystemInterface;
 use Drupal\Core\Utility\Token;
 use Drupal\media\MediaInterface;
 use Psr\Log\LoggerInterface;
@@ -35,27 +36,6 @@ class OmniaController extends ControllerBase {
    */
   protected $entityTypeBundleInfo;
 
-  /**
-   * The media entity.
-   *
-   * @var \Drupal\media\MediaInterface
-   */
-  protected $mediaEntity;
-
-  /**
-   * The media entity storage.
-   *
-   * @var \Drupal\Core\Entity\EntityStorageInterface
-   */
-  protected $mediaEntityStorage;
-
-  /**
-   * The media entity definition.
-   *
-   * @var \Drupal\Core\Entity\EntityTypeInterface
-   */
-  protected $mediaEntityDefinition;
-
   /**
    * The entity field manager.
    *
@@ -91,6 +71,13 @@ class OmniaController extends ControllerBase {
    */
   protected $nexxVideoData = [];
 
+  /**
+   * The file system service.
+   *
+   * @var \Drupal\Core\File\FileSystemInterface
+   */
+  protected $fileSystem;
+
   /**
    * OmniaController constructor.
    *
@@ -104,6 +91,8 @@ class OmniaController extends ControllerBase {
    *   The logger service.
    * @param \Drupal\Core\Utility\Token $token
    *   Token service.
+   * @param \Drupal\Core\File\FileSystemInterface $file_system
+   *   The file system service.
    *
    * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException.
    */
@@ -112,13 +101,15 @@ public function __construct(
     EntityTypeBundleInfoInterface $entity_type_bundle_info,
     EntityFieldManagerInterface $entity_field_manager,
     LoggerInterface $logger,
-    Token $token
+    Token $token,
+    FileSystemInterface $file_system
   ) {
     $this->database = $database;
     $this->entityTypeBundleInfo = $entity_type_bundle_info;
     $this->entityFieldManager = $entity_field_manager;
     $this->logger = $logger;
     $this->token = $token;
+    $this->fileSystem = $file_system;
   }
 
   /**
@@ -130,7 +121,8 @@ public static function create(ContainerInterface $container) {
       $container->get('entity_type.bundle.info'),
       $container->get('entity_field.manager'),
       $container->get('logger.factory')->get('nexx_integration'),
-      $container->get('token')
+      $container->get('token'),
+      $container->get('file_system')
     );
   }
 
@@ -569,8 +561,8 @@ protected function mapTeaserImage(MediaInterface $media, $teaserImageField) {
       $destination_directory = dirname($destination_file);
       if ($destination_directory) {
         // Import file.
-        file_prepare_directory($destination_directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
-        $thumbnail = file_save_data(file_get_contents($thumb_uri), $destination_file, FILE_EXISTS_REPLACE);
+        $this->fileSystem->prepareDirectory($destination_directory, FileSystemInterface::CREATE_DIRECTORY | FileSystemInterface::MODIFY_PERMISSIONS);
+        $thumbnail = file_save_data(file_get_contents($thumb_uri), $destination_file, FileSystemInterface::EXISTS_REPLACE);
         // Add this file to thumbnail field of the nexx media entity.
         $thumbnail_entity->$thumbnail_upload_field->appendItem([
           'target_id' => $thumbnail->id(),
@@ -667,10 +659,10 @@ protected function setState(MediaInterface $media) {
       );
     }
     else {
-      $this->logger->info('Unpublished video "@title" (Drupal id: @id)... States: 
-      active:@active 
-      isSSC:@isSSC 
-      validfrom_ssc:@validfrom_ssc 
+      $this->logger->info('Unpublished video "@title" (Drupal id: @id)... States:
+      active:@active
+      isSSC:@isSSC
+      validfrom_ssc:@validfrom_ssc
       validto_ssc:@validto_ssc ',
         [
           '@title' => $this->nexxVideoData['title'],
diff --git a/src/Form/SettingsForm.php b/src/Form/SettingsForm.php
index 646231f..2804369 100644
--- a/src/Form/SettingsForm.php
+++ b/src/Form/SettingsForm.php
@@ -4,13 +4,14 @@
 
 use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\Ajax\ReplaceCommand;
+use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\Core\Entity\EntityTypeRepositoryInterface;
 use Drupal\Core\Form\ConfigFormBase;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Drupal\Core\Entity\EntityManagerInterface;
 
 /**
  * Class SettingsForm.
@@ -21,40 +22,65 @@
  */
 class SettingsForm extends ConfigFormBase {
   /**
-   * The entity manager service.
+   * The entity type manager service.
    *
-   * @var \Drupal\Core\Entity\EntityManagerInterface
+   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
    */
-  protected $entityManager;
+  protected $entityTypeManager;
 
   /**
-   * The display plugin manager.
+   * The entity type repository service.
    *
-   * @var \Drupal\entity_embed\EntityEmbedDisplay\EntityEmbedDisplayManager
+   * @var \Drupal\Core\Entity\EntityTypeRepositoryInterface
    */
-  protected $displayPluginManager;
+  protected $entityTypeRepository;
 
   /**
-   * {@inheritdoc}
+   * The entity type bundle info service.
    *
-   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
-   *   The config factory.
-   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
-   *   The entity manager service.
+   * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
    */
-  public function __construct(ConfigFactoryInterface $config_factory, EntityManagerInterface $entity_manager) {
-    parent::__construct($config_factory);
-    $this->entityManager = $entity_manager;
-  }
+  protected $entityTypeBundleInfo;
 
   /**
    * {@inheritdoc}
    */
   public static function create(ContainerInterface $container) {
-    return new static(
-      $container->get('config.factory'),
-      $container->get('entity.manager')
-    );
+    $form = parent::create($container);
+    $form->setEntityTypeManager($container->get('entity_type.manager'));
+    $form->setEntityTypeRepository($container->get('entity_type.repository'));
+    $form->setEntityTypeBundleInfo($container->get('entity_type.bundle.info'));
+    return $form;
+  }
+
+  /**
+   * Set the entity type manager service.
+   *
+   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entityTypeManager
+   *   The entity type manager service.
+   */
+  protected function setEntityTypeManager(EntityTypeManagerInterface $entityTypeManager) {
+    $this->entityTypeManager = $entityTypeManager;
+  }
+
+  /**
+   * Set the entity type repository service.
+   *
+   * @param \Drupal\Core\Entity\EntityTypeRepositoryInterface $entityTypeRepository
+   *   The entity type repository service.
+   */
+  protected function setEntityTypeRepository(EntityTypeRepositoryInterface $entityTypeRepository) {
+    $this->entityTypeRepository = $entityTypeRepository;
+  }
+
+  /**
+   * Set the entity type bundle info service.
+   *
+   * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entityTypeBundleInfo
+   *   The entity type bundle info service.
+   */
+  protected function setEntityTypeBundleInfo(EntityTypeBundleInfoInterface $entityTypeBundleInfo) {
+    $this->entityTypeBundleInfo = $entityTypeBundleInfo;
   }
 
   /**
@@ -132,7 +158,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
       '#suffix' => '</div>',
     ];
 
-    $entity_type = $this->entityManager->getDefinition('media');
+    $entity_type = $this->entityTypeManager->getDefinition('media');
     $bundle = !empty($values['type_settings']['video_bundle']) ? $values['type_settings']['video_bundle'] : $settings->get('video_bundle');
     $form['type_settings']['video_bundle'] = [
       '#type' => 'select',
@@ -218,12 +244,12 @@ protected function getEditableConfigNames() {
    *   An array of entity type labels, keyed by entity type name.
    */
   protected function getEntityTypeOptions() {
-    $options = $this->entityManager->getEntityTypeLabels(TRUE);
+    $options = $this->entityTypeRepository->getEntityTypeLabels(TRUE);
 
     foreach ($options as $group => $group_types) {
       foreach (array_keys($group_types) as $entity_type_id) {
         // Filter out entity types that do not have a view builder class.
-        if (!$this->entityManager->getDefinition($entity_type_id)->hasViewBuilderClass()) {
+        if (!$this->entityTypeManager->getDefinition($entity_type_id)->hasViewBuilderClass()) {
           unset($options[$group][$entity_type_id]);
         }
       }
@@ -268,7 +294,7 @@ protected function getEntityBundleOptions(EntityTypeInterface $entity_type) {
     $bundle_options = [];
     // If the entity has bundles, allow option to restrict to bundle(s).
     if ($entity_type->hasKey('bundle')) {
-      foreach ($this->entityManager->getBundleInfo($entity_type->id()) as $bundle_id => $bundle_info) {
+      foreach ($this->entityTypeBundleInfo->getBundleInfo($entity_type->id()) as $bundle_id => $bundle_info) {
         $bundle_options[$bundle_id] = $bundle_info['label'];
       }
       natsort($bundle_options);
diff --git a/src/NexxNotification.php b/src/NexxNotification.php
index 33b25bc..6f1a345 100644
--- a/src/NexxNotification.php
+++ b/src/NexxNotification.php
@@ -5,6 +5,7 @@
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Logger\LoggerChannelFactoryInterface;
 use Drupal\Component\Serialization\Json;
+use Drupal\Core\Messenger\MessengerInterface;
 use GuzzleHttp\Client;
 use GuzzleHttp\Exception\RequestException;
 use Drupal\Core\StringTranslation\TranslationInterface;
@@ -40,6 +41,13 @@ class NexxNotification implements NexxNotificationInterface {
    */
   protected $httpClient;
 
+  /**
+   * The messenger service.
+   *
+   * @var \Drupal\Core\Messenger\MessengerInterface
+   */
+  protected $messenger;
+
   /**
    * Notify nexxOMNIA video CMS.
    *
@@ -54,17 +62,21 @@ class NexxNotification implements NexxNotificationInterface {
    *   The HTTP client.
    * @param \Drupal\Core\StringTranslation\TranslationInterface $translation
    *   The translation service.
+   * @param \Drupal\Core\Messenger\MessengerInterface $messenger
+   *   The messenger service.
    */
   public function __construct(
     ConfigFactoryInterface $config_factory,
     LoggerChannelFactoryInterface $logger_factory,
     Client $http_client,
-    TranslationInterface $translation
+    TranslationInterface $translation,
+    MessengerInterface $messenger
   ) {
     $this->config = $config_factory->get('nexx_integration.settings');
     $this->logger = $logger_factory->get('nexx_integration');
     $this->httpClient = $http_client;
     $this->stringTranslation = $translation;
+    $this->messenger = $messenger;
   }
 
   /**
@@ -169,7 +181,7 @@ protected function notificateNexx(
 
     if ($api_url == '' || $api_authkey == '' || $omnia_id == '') {
       $this->logger->error("Missing configuration for API Url and/or Installation Code (API Key) and/or Omnia ID.");
-      drupal_set_message($this->t("Item wasn't exported to Nexx due to missing configuration for API Url and/or Installation Code (API Key) and/or Omnia ID."), 'error');
+      $this->messenger->addError($this->t("Item wasn't exported to Nexx due to missing configuration for API Url and/or Installation Code (API Key) and/or Omnia ID."));
 
       return FALSE;
     }
diff --git a/tests/modules/nexx_integration_test/nexx_integration_test.info.yml b/tests/modules/nexx_integration_test/nexx_integration_test.info.yml
index f5afd83..c04175c 100644
--- a/tests/modules/nexx_integration_test/nexx_integration_test.info.yml
+++ b/tests/modules/nexx_integration_test/nexx_integration_test.info.yml
@@ -1,7 +1,8 @@
 name: Nexx video integration test module
 type: module
 description: 'Module used in tests for the nexx integration module'
-core: 8.x
+package: Testing
+core_version_requirement: ^8.7.7 || ^9
 
 dependencies:
   - drupal:file
diff --git a/tests/src/Functional/NexxIntegrationVideoTest.php b/tests/src/Functional/NexxIntegrationVideoTest.php
index 6c9e040..e3fc212 100644
--- a/tests/src/Functional/NexxIntegrationVideoTest.php
+++ b/tests/src/Functional/NexxIntegrationVideoTest.php
@@ -3,7 +3,7 @@
 namespace Drupal\Tests\nexx_integration\Functional;
 
 use Drupal\Tests\BrowserTestBase;
-use Drupal\field_ui\Tests\FieldUiTestTrait;
+use Drupal\Tests\field_ui\Traits\FieldUiTestTrait;
 use Drupal\Tests\nexx_integration\FunctionalJavascript\NexxTestTrait;
 
 /**
@@ -19,7 +19,7 @@ class NexxIntegrationVideoTest extends BrowserTestBase {
   /**
    * {@inheritdoc}
    */
-  public static $modules = [
+  protected static $modules = [
     'taxonomy',
     'nexx_integration',
     'nexx_integration_test',
@@ -27,6 +27,11 @@ class NexxIntegrationVideoTest extends BrowserTestBase {
     'field',
   ];
 
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
   /**
    * Test the endpoint.
    */
@@ -188,7 +193,7 @@ public function testDeletedVideoUpdate() {
 
     $videoEntity = $this->loadVideoEntity($videoData->value);
     $this->assertNull($videoEntity, "Video id $id should be deleted.");
-    $this->assertEquals($count - 1, $this->countVideos(), "Counting all videos 
+    $this->assertEquals($count - 1, $this->countVideos(), "Counting all videos
     after deletion. Video id $id should be deleted.");
   }
 
@@ -197,8 +202,8 @@ public function testDeletedVideoUpdate() {
    */
   public function testCronExpiration() {
     $id = 9;
-    $pastDate = REQUEST_TIME - 10000;
-    $futureDate = REQUEST_TIME + 10000;
+    $pastDate = \Drupal::time()->getRequestTime() - 10000;
+    $futureDate = \Drupal::time()->getRequestTime() + 10000;
     $videoFieldName = $this->videoManager->videoFieldName();
 
     // First create a new entity that should be created as an active entity
@@ -256,7 +261,7 @@ public function testDeletedVideoTrigger() {
 
     $videoEntity = $this->loadVideoEntity($videoData->value);
     $this->assertNull($videoEntity, "Video id $id should be deleted.");
-    $this->assertEquals($count - 1, $this->countVideos(), "Counting all videos 
+    $this->assertEquals($count - 1, $this->countVideos(), "Counting all videos
     after deletion. Video id $id should be deleted.");
   }
 
diff --git a/tests/src/FunctionalJavascript/NexxTestTrait.php b/tests/src/FunctionalJavascript/NexxTestTrait.php
index ff4e8ea..490158e 100644
--- a/tests/src/FunctionalJavascript/NexxTestTrait.php
+++ b/tests/src/FunctionalJavascript/NexxTestTrait.php
@@ -154,7 +154,7 @@ protected function getTestVideoData($videoId) {
     $itemData->general->uploaded = 1463997938;
     $itemData->general->copyright = "Copyright notice";
     $itemData->publishingdata->isEncoded = "1";
-    $itemData->imagedata->thumb = "http://nx-i.akamaized.net/201605/G750452J1M6XAOWxL.jpg";
+    $itemData->imagedata->thumb = "https://via.placeholder.com/300.jpg";
     $itemData->general->runtime = "00:02:45";
     $itemData->channeldata->ID = $channel;
     $itemData->general->persons_raw = implode(',', $actors);