diff --git a/core/modules/rest/tests/src/Functional/EntityResource/Comment/CommentResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/Comment/CommentResourceTestBase.php
index 3668635..c5a47ea 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/Comment/CommentResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Comment/CommentResourceTestBase.php
@@ -197,9 +197,7 @@ protected function getExpectedNormalizedEntity() {
         ],
       ],
       'revision_created' => [
-        [
-          'value' => (int) $this->entity->getRevisionCreationTime(),
-        ]
+        $this->formatExpectedTimestampItemValues((int) $this->entity->getRevisionCreationTime()),
       ],
       'revision_user' => [],
       'revision_log_message' => [],