diff --git a/core/modules/system/tests/fixtures/update/drupal-8.block-test-enabled.php b/core/modules/system/tests/fixtures/update/drupal-8.block-test-enabled.php
index d26b379..990278d 100644
--- a/core/modules/system/tests/fixtures/update/drupal-8.block-test-enabled.php
+++ b/core/modules/system/tests/fixtures/update/drupal-8.block-test-enabled.php
@@ -6,6 +6,7 @@
  */
 
 use Drupal\Core\Database\Database;
+use Symfony\Component\Yaml\Yaml;
 
 $connection = Database::getConnection();
 
@@ -34,3 +35,15 @@
   ->condition('collection', '')
   ->condition('name', 'core.extension')
   ->execute();
+
+// Install the block configuration.
+$config = file_get_contents(__DIR__ . '/../../../../block/tests/modules/block_test/config/install/block.block.test_block.yml');
+$config = Yaml::parse($config);
+$connection->insert('config')
+  ->fields(['data', 'name', 'collection'])
+  ->values([
+    'name' => 'block.block.test_block',
+    'data' => serialize($config),
+    'collection' => '',
+  ])
+  ->execute();
diff --git a/core/modules/system/tests/fixtures/update/drupal-8.language-enabled.php b/core/modules/system/tests/fixtures/update/drupal-8.language-enabled.php
index 2306ade..18c819d 100644
Binary files a/core/modules/system/tests/fixtures/update/drupal-8.language-enabled.php and b/core/modules/system/tests/fixtures/update/drupal-8.language-enabled.php differ