diff --git a/src/ParagraphsServiceProvider.php b/src/ParagraphsServiceProvider.php
index b8ce007..9bd23e5 100644
--- a/src/ParagraphsServiceProvider.php
+++ b/src/ParagraphsServiceProvider.php
@@ -27,5 +27,15 @@ class ParagraphsServiceProvider extends ServiceProviderBase {
       $service_definition->addTag('event_subscriber');
       $container->setDefinition('replicate.event_subscriber.paragraphs', $service_definition);
     }
+
+    // Check for installed rest and hal modules.
+    if (isset($modules['rest']) && isset($modules['hal'])) {
+      $service_definition = new Definition(
+        'Drupal\paragraphs\Normalizer\ParagraphFieldItemNormalizer',
+        [new Reference('rest.link_manager'), new Reference('serializer.entity_resolver')]
+      );
+      $service_definition->addTag('normalizer', ['priority' => 20]);
+      $container->setDefinition('serializer.normalizer.paragraph_field_item.hal');
+    }
   }
 }