diff --git a/go.mod b/go.mod
index a031427..3299a47 100644
--- a/go.mod
+++ b/go.mod
@@ -152,7 +152,7 @@ require (
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/arch v0.6.0 // indirect
 	golang.org/x/crypto v0.16.0 // indirect
-	golang.org/x/exp v0.0.0-20231206192017-f3f8817b8deb // indirect
+	golang.org/x/exp v0.0.0-20231214170342-aacd6d4b4611 // indirect
 	golang.org/x/mod v0.14.0 // indirect
 	golang.org/x/net v0.19.0 // indirect
 	golang.org/x/oauth2 v0.15.0 // indirect
diff --git a/go.sum b/go.sum
index 2cd25ff..b9862ee 100644
--- a/go.sum
+++ b/go.sum
@@ -425,8 +425,8 @@ golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/crypto v0.16.0 h1:mMMrFzRSCF0GvB7Ne27XVtVAaXLrPmgPC7/v0tkwHaY=
 golang.org/x/crypto v0.16.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
-golang.org/x/exp v0.0.0-20231206192017-f3f8817b8deb h1:c0vyKkb6yr3KR7jEfJaOSv4lG7xPkbN6r52aJz1d8a8=
-golang.org/x/exp v0.0.0-20231206192017-f3f8817b8deb/go.mod h1:iRJReGqOEeBhDZGkGbynYwcHlctCvnjTYIamk7uXpHI=
+golang.org/x/exp v0.0.0-20231214170342-aacd6d4b4611 h1:qCEDpW1G+vcj3Y7Fy52pEM1AWm3abj8WimGYejI3SC4=
+golang.org/x/exp v0.0.0-20231214170342-aacd6d4b4611/go.mod h1:iRJReGqOEeBhDZGkGbynYwcHlctCvnjTYIamk7uXpHI=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
diff --git a/miner/miner.go b/miner/miner.go
index eda7891..85ed045 100644
--- a/miner/miner.go
+++ b/miner/miner.go
@@ -271,6 +271,7 @@ func (m *miner) mine(ctx context.Context, workerNumber int64) {
 		if len(userKeys) == 0 {
 			for ix := batchNumber * batchSize; ix < (batchNumber+1)*batchSize; ix++ {
 				userKeys = append(userKeys, model.SerializedUsersKey((workers*ix)+workerNumber))
+				userBackupKeys = append(userBackupKeys, model.SerializedBackupUsersKey((workers*ix)+workerNumber))
 			}
 		}
 		before := time.Now()
@@ -282,14 +283,15 @@ func (m *miner) mine(ctx context.Context, workerNumber int64) {
 
 			continue
 		}
+		_, err := m.db.Del(reqCtx, userBackupKeys...).Result()
+		if err != nil {
+			log.Error(errors.Wrap(err, fmt.Sprintf("can't remove backup keys:%#v", userBackupKeys)))
+		}
 		reqCancel()
 		if len(userKeys) > 0 {
 			go m.telemetry.collectElapsed(2, *before.Time)
 		}
 		if balanceBugFixEnabled {
-			for ix := batchNumber * batchSize; ix < (batchNumber+1)*batchSize; ix++ {
-				userBackupKeys = append(userBackupKeys, model.SerializedBackupUsersKey((workers*ix)+workerNumber))
-			}
 			reqCtx, reqCancel = context.WithTimeout(context.Background(), requestDeadline)
 			if err := storage.Bind[backupUserUpdated](reqCtx, m.db, userBackupKeys, &backupUserResults); err != nil {
 				log.Error(errors.Wrapf(err, "[miner] failed to get backuped users for batchNumber:%v,workerNumber:%v", batchNumber, workerNumber))