diff --git a/dags/elsevier/metadata_parser.py b/dags/elsevier/metadata_parser.py
index 080888e6..7212c4f1 100644
--- a/dags/elsevier/metadata_parser.py
+++ b/dags/elsevier/metadata_parser.py
@@ -31,7 +31,6 @@ def __init__(self, file_path):
             CustomExtractor(
                 destination="date_published",
                 extraction_function=self._get_published_date,
-                required=True,
             ),
             CustomExtractor(
                 destination="journal_year",
diff --git a/tests/units/elsevier/test_metadata_parser.py b/tests/units/elsevier/test_metadata_parser.py
index 04f9c617..732d5367 100644
--- a/tests/units/elsevier/test_metadata_parser.py
+++ b/tests/units/elsevier/test_metadata_parser.py
@@ -75,7 +75,7 @@ def parsed_articles(parser, article):
             id="test_publication_info",
         ),
         param(
-            ["2023-11-02", "2023-11-02", "2023-02-04", "2023-11-02"],
+            ["", "", "2023-02-04", ""],
             "date_published",
             id="test_published_date",
         ),
@@ -150,7 +150,7 @@ def parsed_articles(parser, article):
 @freeze_time("2023-11-02")
 def test_elsevier_dataset_parsing(parsed_articles, expected, key):
     for (parsed_article, expected_article) in zip(parsed_articles, expected):
-        assert expected_article == parsed_article[key]
+        assert expected_article == parsed_article.get(key, "")
 
 
 @fixture