diff --git a/datalite/migrations.py b/datalite/migrations.py
index c766985..1a27574 100644
--- a/datalite/migrations.py
+++ b/datalite/migrations.py
@@ -132,6 +132,9 @@ def _migrate_records(class_: type, database_name: str, data,
     new_records = _modify_records(data, col_to_del, col_to_add, flow)
     for record in new_records:
         del record['obj_id']
+        keys_to_delete = [key for key in record if record[key] is None]
+        for key in keys_to_delete:
+            del record[key]
         class_(**record).create_entry()
 
 
diff --git a/setup.py b/setup.py
index 28ddb01..e7bf144 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="datalite", # Replace with your own username
-    version="0.5.3",
+    version="0.5.4",
     author="Ege Ozkan",
     author_email="egeemirozkan24@gmail.com",
     description="A small package that binds dataclasses to an sqlite database",
diff --git a/test/main_tests.py b/test/main_tests.py
index c174d07..836177c 100644
--- a/test/main_tests.py
+++ b/test/main_tests.py
@@ -40,6 +40,7 @@ class Migrate1:
 @dataclass
 class Migrate2:
     cardinal: int
+    str_: str = "default"
 
 
 def getValFromDB(obj_id = 1):
@@ -153,6 +154,7 @@ class DatabaseMigration(unittest.TestCase):
         basic_migrate(Migrate1, {'ordinal': 'cardinal'})
         t_objs = fetch_all(Migrate1)
         self.assertEqual([obj.ordinal for obj in self.objs], [obj.cardinal for obj in t_objs])
+        self.assertEqual(["default" for _ in range(10)], [obj.str_ for obj in t_objs])
 
     def tearDown(self) -> None:
         t_objs = fetch_all(Migrate1)