diff --git a/biz/db/db.go b/biz/db/db.go
index 1e4ff6a..5a3313c 100644
--- a/biz/db/db.go
+++ b/biz/db/db.go
@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"gorm.io/driver/mysql"
 	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
 	"runtime/trace"
 	"strconv"
 	"time"
@@ -19,7 +20,12 @@ type Db struct {
 }
 
 func NewDb(str string) (*Db, error) {
-	db, err := gorm.Open(mysql.Open(str + ""))
+	db, err := gorm.Open(
+		mysql.Open(str+""),
+		&gorm.Config{
+			Logger: logger.Discard,
+		},
+	)
 	if err != nil {
 		return nil, err
 	}