core/modules/hal/src/Normalizer/TimestampItemNormalizer.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/modules/hal/src/Normalizer/TimestampItemNormalizer.php b/core/modules/hal/src/Normalizer/TimestampItemNormalizer.php
index 476e7f5..2cda0fa 100644
--- a/core/modules/hal/src/Normalizer/TimestampItemNormalizer.php
+++ b/core/modules/hal/src/Normalizer/TimestampItemNormalizer.php
@@ -41,7 +41,7 @@ protected function constructValue($data, $context) {
     if (!empty($data['format'])) {
       $context['datetime_format'] = $data['format'];
     }
-    return $this->serializer->denormalize($data, Timestamp::class, NULL, $context);
+    return ['value' => $this->serializer->denormalize($data['value'], Timestamp::class, NULL, $context)];
   }
 
 }