diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..5f8ca4a
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,12 @@
+{
+  "name": "drupal/hal-hal",
+  "description": "Hypermedia Application Language (HAL)",
+  "type": "drupal-module",
+  "license": "GPL-2.0-or-later",
+  "require": {
+    "drupal/core": "^9 || ^10"
+  },
+  "require-dev": {
+    "drupal/entity_reference_revisions": "1.x-dev"
+  }
+}
diff --git a/hal.services.yml b/hal.services.yml
index 38ffb22..9bb431e 100644
--- a/hal.services.yml
+++ b/hal.services.yml
@@ -22,6 +22,12 @@ services:
    tags:
      # Priority must be higher than serializer.normalizer.field_item.hal.
      - { name: normalizer, priority: 20 }
+  serializer.normalizer.entity_reference_revisions_item.hal:
+    class: Drupal\hal\Normalizer\EntityReferenceRevisionItemNormalizer
+    arguments: [ '@hal.link_manager', '@serializer.entity_resolver', '@entity_type.manager' ]
+    # Priority must be higher than serializer.normalizer.entity_reference_item.hal.
+    tags:
+      - { name: normalizer, priority: 20 }
   serializer.normalizer.entity.hal:
     class: Drupal\hal\Normalizer\ContentEntityNormalizer
     arguments: ['@hal.link_manager', '@entity_type.manager', '@module_handler', '@entity_type.repository', '@entity_field.manager']
diff --git a/src/Normalizer/EntityReferenceRevisionItemNormalizer.php b/src/Normalizer/EntityReferenceRevisionItemNormalizer.php
new file mode 100644
index 0000000..cb55771
--- /dev/null
+++ b/src/Normalizer/EntityReferenceRevisionItemNormalizer.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Drupal\hal\Normalizer;
+
+/**
+ * Defines a class for normalizing EntityReferenceRevisionItems.
+ */
+class EntityReferenceRevisionItemNormalizer extends EntityReferenceItemNormalizer {
+
+  /**
+   * The interface or class that this Normalizer supports.
+   *
+   * @var string
+   */
+  protected $supportedInterfaceOrClass = '\Drupal\entity_reference_revisions\Plugin\Field\FieldType\EntityReferenceRevisionsItem';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function constructValue($data, $context) {
+    $value = parent::constructValue($data, $context);
+    if ($value) {
+      $value['target_revision_id'] = $data['target_revision_id'];
+    }
+    return $value;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function normalize($field_item, $format = NULL, array $context = []): array|string|int|float|bool|\ArrayObject|NULL {
+    $data = parent::normalize($field_item, $format, $context);
+    $field_name = $field_item->getParent()->getName();
+    $entity = $field_item->getEntity();
+    $field_uri = $this->linkManager->getRelationUri($entity->getEntityTypeId(), $entity->bundle(), $field_name, $context);
+    $data['_embedded'][$field_uri][0]['target_revision_id'] = $field_item->target_revision_id;
+    return $data;
+  }
+
+}
diff --git a/tests/src/Functional/entity_reference_revisions/EntityReferenceRevisionsNormalizerTest.php b/tests/src/Functional/entity_reference_revisions/EntityReferenceRevisionsNormalizerTest.php
new file mode 100644
index 0000000..38a10a8
--- /dev/null
+++ b/tests/src/Functional/entity_reference_revisions/EntityReferenceRevisionsNormalizerTest.php
@@ -0,0 +1,115 @@
+<?php
+
+namespace Drupal\Tests\hal\Functional\entity_reference_revisions;
+
+use Drupal\node\Entity\Node;
+use Drupal\Tests\BrowserTestBase;
+use Drupal\Tests\field_ui\Traits\FieldUiTestTrait;
+
+/**
+ * Tests the entity_reference_revisions configuration.
+ *
+ * @group hal
+ * @requires module entity_reference_revisions
+ */
+class EntityReferenceRevisionsNormalizerTest extends BrowserTestBase {
+
+  use FieldUiTestTrait;
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  protected static $modules = array(
+    'node',
+    'field',
+    'entity_reference_revisions',
+    'field_ui',
+    'block',
+    'hal',
+    'serialization',
+    'rest',
+  );
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+    // Create paragraphs and article content types.
+    $this->drupalCreateContentType(array('type' => 'entity_revisions', 'name' => 'Entity revisions'));
+    $this->drupalCreateContentType(array('type' => 'article', 'name' => 'Article'));
+    // Place the breadcrumb, tested in fieldUIAddNewField().
+    $this->drupalPlaceBlock('system_breadcrumb_block');
+  }
+
+  /**
+   * Tests the entity reference revisions configuration.
+   */
+  public function testEntityReferenceRevisions() {
+    $admin_user = $this->drupalCreateUser(array(
+      'administer site configuration',
+      'administer nodes',
+      'create article content',
+      'create entity_revisions content',
+      'administer content types',
+      'administer node fields',
+      'administer node display',
+      'administer node form display',
+      'edit any article content',
+    ));
+    $this->drupalLogin($admin_user);
+    // Create entity reference revisions field.
+    static::fieldUIAddNewField('admin/structure/types/manage/entity_revisions', 'entity_reference_revisions', 'Entity reference revisions', 'entity_reference_revisions', array('settings[target_type]' => 'node', 'cardinality' => '-1'), array('settings[handler_settings][target_bundles][article]' => TRUE));
+    $this->assertSession()->pageTextContains('Saved Entity reference revisions configuration.');
+
+    // Create an article.
+    $title = $this->randomMachineName();
+    $edit = array(
+      'title[0][value]' => $title,
+      'body[0][value]' => 'Revision 1',
+    );
+    $this->drupalGet('node/add/article');
+    $this->submitForm($edit, 'Save');
+    $this->assertSession()->pageTextContains($title);
+    $this->assertSession()->pageTextContains('Revision 1');
+    $node = $this->drupalGetNodeByTitle($title);
+
+    // Create entity revisions content that includes the above article.
+    $err_title = 'Entity reference revision content';
+    $edit = array(
+      'title[0][value]' => $err_title,
+      'field_entity_reference_revisions[0][target_id]' => $node->label() . ' (' . $node->id() . ')',
+    );
+    $this->drupalGet('node/add/entity_revisions');
+    $this->submitForm($edit, 'Save');
+    $this->assertSession()->pageTextContains('Entity revisions Entity reference revision content has been created.');
+    $err_node = $this->drupalGetNodeByTitle($err_title);
+
+    $this->assertSession()->pageTextContains($err_title);
+    $this->assertSession()->pageTextContains($title);
+    $this->assertSession()->pageTextContains('Revision 1');
+
+    // Create 2nd revision of the article.
+    $edit = array(
+      'body[0][value]' => 'Revision 2',
+      'revision' => TRUE,
+    );
+    $this->drupalGet('node/' . $node->id() . '/edit');
+    $this->submitForm($edit, 'Save');
+    $serializer = $this->container->get('serializer');
+    $normalized = $serializer->normalize($err_node, 'hal_json');
+    $request = \Drupal::request();
+    $link_domain = $request->getSchemeAndHttpHost() . $request->getBasePath();
+    $this->assertEquals($err_node->field_entity_reference_revisions->target_revision_id, $normalized['_embedded'][$link_domain . '/rest/relation/node/entity_revisions/field_entity_reference_revisions'][0]['target_revision_id']);
+    $new_err_node = $serializer->denormalize($normalized, Node::class, 'hal_json');
+    $this->assertEquals($err_node->field_entity_reference_revisions->target_revision_id, $new_err_node->field_entity_reference_revisions->target_revision_id);
+  }
+
+}