diff --git a/sigl/domain/service.py b/sigl/domain/service.py
index 20907ae..ef7c660 100644
--- a/sigl/domain/service.py
+++ b/sigl/domain/service.py
@@ -89,6 +89,21 @@ def list_delete(session: Session, id: int):
     session.commit()
 
 
+def list_deleteCrossedOff(session: Session, id: int) -> ShoppingList:
+    """Delete all Crossed-Off Entries from a Shopping List."""
+    sList = list_by_id(session, id)
+    if not sList:
+        raise NotFoundError(f'List {id} does not exist')
+
+    for entry in sList.entries:
+        if entry.crossedOff:
+            session.delete(entry)
+
+    session.commit()
+
+    return sList
+
+
 def list_deleteItem(session: Session, listId: int, entryId: int):
     """Delete an Entry from a Shopping List."""
     entry = list_entry_by_id(session, listId, entryId)
@@ -153,6 +168,7 @@ def list_update(
 
     sList.name = name
     sList.notes = notes
+    sList.set_modified_at()
 
     session.add(sList)
     session.commit()
@@ -184,6 +200,8 @@ def list_entry_set_crossedOff(session: Session, listId: int, entryId: int, cross
     entry = list_entry_by_id(session, listId, entryId)
 
     entry.crossedOff = crossedOff
+    entry.set_modified_at()
+
     session.add(entry)
     session.commit()