diff --git a/core/lib/Drupal/Core/Lock/DatabaseLockBackend.php b/core/lib/Drupal/Core/Lock/DatabaseLockBackend.php
index d877dba..d407843 100644
--- a/core/lib/Drupal/Core/Lock/DatabaseLockBackend.php
+++ b/core/lib/Drupal/Core/Lock/DatabaseLockBackend.php
@@ -114,4 +114,11 @@ public function releaseAll($lock_id = NULL) {
       ->condition('value', $lock_id)
       ->execute();
   }
+
+  /**
+   * Releases pending locks.
+   */
+  public function __destruct() {
+    $this->releaseAll();
+  }
 }