diff --git a/src/main/java/lab/ScoreDAO.java b/src/main/java/lab/ScoreDAO.java
index 09ddfea8629bebd0d00e37f139cde7644265da8c..688933522235bba25ad1e4ffd4bed7668c67fa8d 100644
--- a/src/main/java/lab/ScoreDAO.java
+++ b/src/main/java/lab/ScoreDAO.java
@@ -101,8 +101,9 @@ public class ScoreDAO {
 					PreparedStatement pstms = conn.prepareStatement("DELETE FROM score WHERE id = ?")){
 				for (Integer id: idsForDelete) {
 					pstms.setInt(1, id);
-					pstms.executeUpdate();
+					pstms.addBatch();
 				}
+				pstms.executeBatch();
 			
 		} catch (SQLException e) {
 			e.printStackTrace();