diff --git a/repository/quiz/quiz.go b/repository/quiz/quiz.go
index 96f6a77..131a7a1 100644
--- a/repository/quiz/quiz.go
+++ b/repository/quiz/quiz.go
@@ -389,29 +389,35 @@ func (r *QuizRepository) UpdateQuiz(ctx context.Context, accountId string, recor
 	var params []interface{}
 
 	if record.Name != "" {
-		query += ` name = $1,`
+		query += ` name = $%d,`
 		params = append(params, record.Name)
 	}
 
 	if record.Description != "" {
-		query += ` description = $2::text,`
+		query += ` description = $%d::text,`
 		params = append(params, record.Description)
 	}
 
 	if record.Status != "" {
-		query += ` status = $3,`
+		query += ` status = $%d,`
 		params = append(params, record.Status)
 	}
 
 	if record.Config != "" {
-		query += ` config = $4::text,`
+		query += ` config = $%d::text,`
 		params = append(params, record.Config)
 	}
 
-	query += ` group_id = $5, version = $6 WHERE id = $7 AND accountid = $8`
+	query += ` group_id = $%d, version = $%d WHERE id = $%d AND accountid = $%d`
 
 	params = append(params, record.GroupId, record.Version, record.Id, accountId)
+	var placeholders []any
+	for i:=1;i<=len(params);i++ {
+		placeholders = append(placeholders, i)
+	}
 
+	query = fmt.Sprintf(query, placeholders...)
+	
 	_, err := r.pool.ExecContext(ctx, query, params...)
 	return err
 }