diff --git a/core/modules/block/block.install b/core/modules/block/block.install
index 63b3784..8f98cbc 100644
--- a/core/modules/block/block.install
+++ b/core/modules/block/block.install
@@ -6,20 +6,25 @@
  */
 
 /**
- * Implements hook_update_N().
+ * Disables blocks that are placed into the "disabled" region.
  */
 function block_update_8001() {
-  // Load all blocks in the disabled region.
+  // Find all blocks in the disabled region.
   /** @var \Drupal\block\BlockInterface[] $blocks */
-  $blocks = \Drupal::entityManager()
+  $block_ids = \Drupal::entityManager()
     ->getStorage('block')
-    ->loadByProperties(['region' => -1]);
+    ->getQuery()
+    ->condition('region', -1)
+    ->execute();
+
+  $config_factory = \Drupal::configFactory();
 
   // Disable each block and assign them to the default region.
-  foreach ($blocks as $block) {
-    $block
-      ->disable()
-      ->setRegion(system_default_region($block->getTheme()))
+  foreach ($block_ids as $block_id) {
+    $block_config = $config_factory->getEditable('block.block.' . $block_id);
+    $block_config
+      ->set('region', system_default_region($block_config->get('theme')))
+      ->set('status', FALSE)
       ->save();
   }
 }