diff --git a/stix2/test/v20/test_datastore_filesystem.py b/stix2/test/v20/test_datastore_filesystem.py
index 86846c4..25de37e 100644
--- a/stix2/test/v20/test_datastore_filesystem.py
+++ b/stix2/test/v20/test_datastore_filesystem.py
@@ -450,6 +450,8 @@ def test_filesystem_attempt_stix_file_overwrite(fs_store):
 
 def test_filesystem_sink_marking(fs_sink):
     marking = stix2.v20.MarkingDefinition(
+        id="marking-definition--34098fce-860f-48ae-8e50-ebd3cc5e41da",
+        created="2017-01-20T00:00:00.000Z",
         definition_type="tlp",
         definition=stix2.v20.TLPMarking(tlp="green"),
     )
@@ -583,6 +585,8 @@ def test_filesystem_store_add_invalid_object(fs_store):
 
 def test_filesystem_store_add_marking(fs_store):
     marking = stix2.v20.MarkingDefinition(
+        id="marking-definition--34098fce-860f-48ae-8e50-ebd3cc5e41da",
+        created="2017-01-20T00:00:00.000Z",
         definition_type="tlp",
         definition=stix2.v20.TLPMarking(tlp="green"),
     )
diff --git a/stix2/test/v21/test_datastore_filesystem.py b/stix2/test/v21/test_datastore_filesystem.py
index 2404f3f..34b1088 100644
--- a/stix2/test/v21/test_datastore_filesystem.py
+++ b/stix2/test/v21/test_datastore_filesystem.py
@@ -421,6 +421,8 @@ def test_filesystem_sink_add_objects_list(fs_sink, fs_source):
 
 def test_filesystem_sink_marking(fs_sink):
     marking = stix2.v21.MarkingDefinition(
+        id="marking-definition--34098fce-860f-48ae-8e50-ebd3cc5e41da",
+        created="2017-01-20T00:00:00.000Z",
         definition_type="tlp",
         definition=stix2.v21.TLPMarking(tlp="green"),
     )
@@ -554,6 +556,8 @@ def test_filesystem_store_add_invalid_object(fs_store):
 
 def test_filesystem_store_add_marking(fs_store):
     marking = stix2.v21.MarkingDefinition(
+        id="marking-definition--34098fce-860f-48ae-8e50-ebd3cc5e41da",
+        created="2017-01-20T00:00:00.000Z",
         definition_type="tlp",
         definition=stix2.v21.TLPMarking(tlp="green"),
     )