diff --git a/backend/app/models/entries.py b/backend/app/models/entries.py
index 269c096..38ef942 100644
--- a/backend/app/models/entries.py
+++ b/backend/app/models/entries.py
@@ -15,9 +15,7 @@ class Entry(Base):
     newsletter_id = Column(String, ForeignKey("newsletters.id"))
     subject = Column(String)
     body = Column(Text)
-    received_at = Column(
-        DateTime(timezone=True), default=datetime.datetime.now(datetime.UTC)
-    )
+    received_at = Column(DateTime(timezone=True), default=datetime.datetime.now)
     message_id = Column(String, unique=True, index=True, nullable=False)
 
     newsletter = relationship("Newsletter", back_populates="entries")
diff --git a/backend/app/tests/test_crud.py b/backend/app/tests/test_crud.py
index 8e0acc1..4fa1fd2 100644
--- a/backend/app/tests/test_crud.py
+++ b/backend/app/tests/test_crud.py
@@ -278,3 +278,27 @@ def test_delete_newsletter(db_session: Session):
     from app.crud.newsletters import get_newsletter_by_identifier
 
     assert get_newsletter_by_identifier(db_session, newsletter.id) is None
+
+
+def test_create_multiple_entries_have_different_timestamps(db_session: Session):
+    """Test that multiple entries for the same newsletter have different timestamps."""
+    import time
+
+    newsletter_data = NewsletterCreate(
+        name="Timestamp Test Newsletter",
+        sender_emails=[f"sender_{uuid.uuid4()}@test.com"],
+    )
+    newsletter = create_newsletter(db_session, newsletter_data)
+    entry_data_1 = EntryCreate(
+        subject="Entry 1", body="Body 1", message_id=f"<{uuid.uuid4()}@test.com>"
+    )
+    entry1 = create_entry(db_session, entry_data_1, newsletter.id)
+
+    time.sleep(1)  # sleep for a short time to ensure timestamps are different
+
+    entry_data_2 = EntryCreate(
+        subject="Entry 2", body="Body 2", message_id=f"<{uuid.uuid4()}@test.com>"
+    )
+    entry2 = create_entry(db_session, entry_data_2, newsletter.id)
+
+    assert entry1.received_at != entry2.received_at