diff --git a/Dockerfile b/Dockerfile
index 70f3b428..e1f8a708 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21.4-alpine AS base
+FROM golang:1.21.6-alpine AS base
 WORKDIR /app
 
 # builder
diff --git a/go.mod b/go.mod
index a3c5219e..0042c8ec 100644
--- a/go.mod
+++ b/go.mod
@@ -60,7 +60,7 @@ require (
 	go.opentelemetry.io/otel/sdk v1.16.0
 	go.uber.org/fx v1.19.2
 	golang.org/x/exp v0.0.0-20220823124025-807a23277127
-	golang.org/x/mod v0.9.0
+	golang.org/x/mod v0.14.0
 	golang.org/x/sync v0.5.0
 	golang.org/x/text v0.14.0
 	google.golang.org/protobuf v1.30.0
@@ -162,7 +162,7 @@ require (
 	golang.org/x/crypto v0.14.0 // indirect
 	golang.org/x/net v0.17.0 // indirect
 	golang.org/x/sys v0.13.0 // indirect
-	golang.org/x/tools v0.7.0 // indirect
+	golang.org/x/tools v0.13.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	mellium.im/sasl v0.3.1 // indirect
 )
diff --git a/go.sum b/go.sum
index c1d3ef63..727664e9 100644
--- a/go.sum
+++ b/go.sum
@@ -636,6 +636,8 @@ golang.org/x/mod v0.7.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.9.0 h1:KENHtAZL2y3NLMYZeHY9DW8HW8V+kQyJsY/V9JlKvCs=
 golang.org/x/mod v0.9.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/mod v0.14.0 h1:dGoOF9QVLYng8IHTm7BAyWqCqSheQ5pYWGhzW00YJr0=
+golang.org/x/mod v0.14.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -839,6 +841,8 @@ golang.org/x/tools v0.5.0/go.mod h1:N+Kgy78s5I24c24dU8OfWNEotWjutIs8SnJvn5IDq+k=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.7.0 h1:W4OVu8VVOaIO0yzWMNdepAulS7YfoS3Zabrm8DOXXU4=
 golang.org/x/tools v0.7.0/go.mod h1:4pg6aUX35JBAogB10C9AtvVL+qowtN4pT3CGSQex14s=
+golang.org/x/tools v0.13.0 h1:Iey4qkscZuv0VvIt8E0neZjtPVQFSc870HQ448QgEmQ=
+golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/internal/model/cache/caches.go b/internal/model/cache/caches.go
index e2d008ee..9e3b70db 100644
--- a/internal/model/cache/caches.go
+++ b/internal/model/cache/caches.go
@@ -1,7 +1,6 @@
 package cache
 
 import (
-	"context"
 	"sync"
 	"time"
 
@@ -11,7 +10,6 @@ import (
 	"exusiai.dev/backend-next/internal/model"
 	modelv2 "exusiai.dev/backend-next/internal/model/v2"
 	"exusiai.dev/backend-next/internal/pkg/cache"
-	"exusiai.dev/backend-next/internal/repo"
 )
 
 type Flusher func() error
@@ -19,6 +17,7 @@ type Flusher func() error
 var (
 	AccountByID        *cache.Set[model.Account]
 	AccountByPenguinID *cache.Set[model.Account]
+	AccountExistence   *cache.Set[int]
 
 	ItemDropSetByStageIDAndRangeID   *cache.Set[[]int]
 	ItemDropSetByStageIdAndTimeRange *cache.Set[[]int]
@@ -73,18 +72,15 @@ var (
 
 	LastModifiedTime *cache.Set[time.Time]
 
-	Properties map[string]string
-
 	once sync.Once
 
 	SetMap             map[string]Flusher
 	SingularFlusherMap map[string]Flusher
 )
 
-func Initialize(propertyRepo *repo.Property) {
+func Initialize() {
 	once.Do(func() {
 		initializeCaches()
-		populateProperties(propertyRepo)
 	})
 }
 
@@ -116,9 +112,11 @@ func initializeCaches() {
 	// account
 	AccountByID = cache.NewSet[model.Account]("account#accountId")
 	AccountByPenguinID = cache.NewSet[model.Account]("account#penguinId")
+	AccountExistence = cache.NewSet[int]("accountExistence#accountId")
 
 	SetMap["account#accountId"] = AccountByID.Flush
 	SetMap["account#penguinId"] = AccountByPenguinID.Flush
+	SetMap["accountExistence#accountId"] = AccountExistence.Flush
 
 	// drop_info
 	ItemDropSetByStageIDAndRangeID = cache.NewSet[[]int]("itemDropSet#server|stageId|rangeId")
@@ -239,15 +237,3 @@ func initializeCaches() {
 
 	SetMap["lastModifiedTime#key"] = LastModifiedTime.Flush
 }
-
-func populateProperties(repo *repo.Property) {
-	Properties = make(map[string]string)
-	properties, err := repo.GetProperties(context.Background())
-	if err != nil {
-		panic(err)
-	}
-
-	for _, property := range properties {
-		Properties[property.Key] = property.Value
-	}
-}
diff --git a/internal/repo/account.go b/internal/repo/account.go
index c235aaad..d0d1fc66 100644
--- a/internal/repo/account.go
+++ b/internal/repo/account.go
@@ -2,12 +2,14 @@ package repo
 
 import (
 	"context"
+	"strconv"
 	"time"
 
 	"github.com/rs/zerolog/log"
 	"github.com/uptrace/bun"
 
 	"exusiai.dev/backend-next/internal/model"
+	"exusiai.dev/backend-next/internal/model/cache"
 	"exusiai.dev/backend-next/internal/pkg/pgerr"
 	"exusiai.dev/backend-next/internal/pkg/pgid"
 	"exusiai.dev/backend-next/internal/repo/selector"
@@ -74,6 +76,11 @@ func (r *Account) GetAccountByPenguinId(ctx context.Context, penguinId string) (
 }
 
 func (r *Account) IsAccountExistWithId(ctx context.Context, accountId int) bool {
+	var exist int
+	err := cache.AccountExistence.Get(strconv.Itoa(accountId), &exist)
+	if err == nil {
+		return exist == 1
+	}
 	account, err := r.sel.SelectOne(ctx, func(q *bun.SelectQuery) *bun.SelectQuery {
 		return q.Column("account_id").Where("account_id = ?", accountId)
 	})
@@ -81,5 +88,11 @@ func (r *Account) IsAccountExistWithId(ctx context.Context, accountId int) bool
 		return false
 	}
 
-	return account != nil
+	exists := account != nil
+
+	if exists {
+		cache.AccountExistence.Set(strconv.Itoa(account.AccountID), 1, time.Hour*24)
+	}
+
+	return exists
 }
diff --git a/internal/repo/drop_report_extra.go b/internal/repo/drop_report_extra.go
index 6ee64493..f3950647 100644
--- a/internal/repo/drop_report_extra.go
+++ b/internal/repo/drop_report_extra.go
@@ -73,15 +73,16 @@ func (c *DropReportExtra) DeleteDropReportExtrasForArchive(ctx context.Context,
 func (c *DropReportExtra) IsDropReportExtraMD5Exist(ctx context.Context, md5 string) bool {
 	var dropReportExtra model.DropReportExtra
 
-	count, err := c.db.NewSelect().
+	err := c.db.NewSelect().
 		Model(&dropReportExtra).
 		Where("md5 = ?", md5).
-		Count(ctx)
+		Limit(1).
+		Scan(ctx)
 	if err != nil {
 		return false
 	}
 
-	return count > 0
+	return true
 }
 
 func (r *DropReportExtra) CreateDropReportExtra(ctx context.Context, tx bun.Tx, report *model.DropReportExtra) error {
diff --git a/internal/util/reportverifs/verify_md5.go b/internal/util/reportverifs/verify_md5.go
index 1f28ff16..df068397 100644
--- a/internal/util/reportverifs/verify_md5.go
+++ b/internal/util/reportverifs/verify_md5.go
@@ -3,11 +3,11 @@ package reportverifs
 import (
 	"context"
 
+	"exusiai.dev/gommon/constant"
 	"github.com/pkg/errors"
 
 	"exusiai.dev/backend-next/internal/model/types"
 	"exusiai.dev/backend-next/internal/repo"
-	"exusiai.dev/gommon/constant"
 )
 
 var ErrMD5Conflict = errors.New("report with specified md5 has already existed")