tests/src/Functional/FileTest.php                  | 3 +--
 tests/src/Functional/JsonApiFunctionalTestBase.php | 4 ++++
 tests/src/Kernel/Field/FileDownloadUrlTest.php     | 4 ++++
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/tests/src/Functional/FileTest.php b/tests/src/Functional/FileTest.php
index 7f5af0e..a804a0c 100644
--- a/tests/src/Functional/FileTest.php
+++ b/tests/src/Functional/FileTest.php
@@ -240,8 +240,7 @@ class FileTest extends ResourceTestBase {
   public function testGetIndividualBc() {
     // Enable the BC layer.
     // @see jsonapi_entity_base_field_info()
-    $config_factory = \Drupal::configFactory();
-    $config_factory->getEditable('jsonapi.settings')
+    $this->config('jsonapi.settings')
       ->set('bc_file_download_url', TRUE)
       ->save(TRUE);
     Cache::invalidateTags(['entity_field_info']);
diff --git a/tests/src/Functional/JsonApiFunctionalTestBase.php b/tests/src/Functional/JsonApiFunctionalTestBase.php
index abcfb02..7098834 100644
--- a/tests/src/Functional/JsonApiFunctionalTestBase.php
+++ b/tests/src/Functional/JsonApiFunctionalTestBase.php
@@ -183,6 +183,10 @@ abstract class JsonApiFunctionalTestBase extends BrowserTestBase {
       'administer taxonomy',
     ]);
 
+    $this->config('jsonapi.settings')
+      ->set('bc_file_download_url', TRUE)
+      ->save(TRUE);
+
     drupal_flush_all_caches();
   }
 
diff --git a/tests/src/Kernel/Field/FileDownloadUrlTest.php b/tests/src/Kernel/Field/FileDownloadUrlTest.php
index 5056f2c..6e9681b 100644
--- a/tests/src/Kernel/Field/FileDownloadUrlTest.php
+++ b/tests/src/Kernel/Field/FileDownloadUrlTest.php
@@ -45,6 +45,10 @@ class FileDownloadUrlTest extends KernelTestBase {
   protected function setUp() {
     parent::setUp();
 
+    $this->config('jsonapi.settings')
+      ->set('bc_file_download_url', TRUE)
+      ->save(TRUE);
+
     $this->installEntitySchema('file');
     $this->installSchema('file', ['file_usage']);