diff --git a/composer.lock b/composer.lock
index d9fa2a1..80a210b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "5e14f057cfce03180014a6a75e38de6f",
-    "content-hash": "7d72dc63a3981fb6edb92f6786ba94b1",
+    "hash": "7d101b08e5ae002d827cd42ae9a4e344",
+    "content-hash": "60f7057617c6d995bf9946d0b12f0b5d",
     "packages": [
         {
             "name": "composer/installers",
diff --git a/core/tests/Drupal/Tests/ComposerIntegrationTest.php b/core/tests/Drupal/Tests/ComposerIntegrationTest.php
index 97106b4..50d6a87 100644
--- a/core/tests/Drupal/Tests/ComposerIntegrationTest.php
+++ b/core/tests/Drupal/Tests/ComposerIntegrationTest.php
@@ -78,6 +78,15 @@ public function testComposerJson() {
   }
 
   /**
+   * Tests composer.lock hash.
+   */
+  public function testComposerLockHash() {
+    $json = file_get_contents($this->root . '/composer.json');
+    $lock = json_decode(file_get_contents($this->root . '/composer.lock'), TRUE);
+    $this->assertSame(md5($json), $lock['hash']);
+  }
+
+  /**
    * Tests core's composer.json replace section.
    *
    * Verify that all core modules are also listed in the 'replace' section of