diff --git a/internal/store/sqlite/sqlite.go b/internal/store/sqlite/sqlite.go
index b01f269..4aa3e32 100644
--- a/internal/store/sqlite/sqlite.go
+++ b/internal/store/sqlite/sqlite.go
@@ -156,7 +156,20 @@ func (s *SQLiteStore) GetAllNotes(ctx context.Context) ([]models.Note, error) {
 }
 
 func (s *SQLiteStore) DeleteNoteByID(ctx context.Context, id int) error {
-	return fmt.Errorf("not implemented")
+	result, err := s.write.ExecContext(ctx, `
+		DELETE FROM notes WHERE id = ?;
+	`, id)
+	if err != nil {
+		return fmt.Errorf("failed to delete note: %w", err)
+	}
+	rowsAffected, err := result.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("failed to get rows affected: %w", err)
+	}
+	if rowsAffected == 0 {
+		return fmt.Errorf("note with ID %d not found", id)
+	}
+	return nil
 }
 
 func (s *SQLiteStore) validateSchema(ctx context.Context) error {