diff --git a/db/leveldb/leveldb.go b/db/leveldb/leveldb.go
index cfe7716..2d86dbb 100644
--- a/db/leveldb/leveldb.go
+++ b/db/leveldb/leveldb.go
@@ -50,7 +50,7 @@ func init() {
 func (ldb *LevelDBImpl) Open() error {
 	p := path.Join("data", "leveldb-v2")
 	d, err := leveldb.OpenFile(p, &opt.Options{
-		WriteBuffer: 128 * opt.KiB,
+		WriteBuffer: 32 * opt.KiB,
 	})
 	if err != nil {
 		return errors.Wrap(err, "open leveldb error")
diff --git a/go.mod b/go.mod
index 852d52a..0d4896d 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.17
 require (
 	github.com/Baozisoftware/qrcode-terminal-go v0.0.0-20170407111555-c0650d8dff0f
 	github.com/Microsoft/go-winio v0.5.1
-	github.com/Mrs4s/MiraiGo v0.0.0-20220209092529-5d071b034c17
+	github.com/Mrs4s/MiraiGo v0.0.0-20220212081637-6692c4acb8eb
 	github.com/RomiChan/websocket v1.4.3-0.20220123145318-307a86b127bc
 	github.com/dustin/go-humanize v1.0.0
 	github.com/fumiama/go-hide-param v0.1.4
diff --git a/go.sum b/go.sum
index ba46225..9c788da 100644
--- a/go.sum
+++ b/go.sum
@@ -2,8 +2,8 @@ github.com/Baozisoftware/qrcode-terminal-go v0.0.0-20170407111555-c0650d8dff0f h
 github.com/Baozisoftware/qrcode-terminal-go v0.0.0-20170407111555-c0650d8dff0f/go.mod h1:4a58ifQTEe2uwwsaqbh3i2un5/CBPg+At/qHpt18Tmk=
 github.com/Microsoft/go-winio v0.5.1 h1:aPJp2QD7OOrhO5tQXqQoGSJc+DjDtWTGLOmNyAm6FgY=
 github.com/Microsoft/go-winio v0.5.1/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
-github.com/Mrs4s/MiraiGo v0.0.0-20220209092529-5d071b034c17 h1:OQVnlWt5if0TOFoNGDjILazBjVTncSlPxGXabD+4MvE=
-github.com/Mrs4s/MiraiGo v0.0.0-20220209092529-5d071b034c17/go.mod h1:rtKLkhMEi2YjsrXaNztT4uagUOPBxf6a+TNREkG097I=
+github.com/Mrs4s/MiraiGo v0.0.0-20220212081637-6692c4acb8eb h1:nc96MkGgqa2iW8bMzFMj2mdT9LUJYgsdez30zwo8qxg=
+github.com/Mrs4s/MiraiGo v0.0.0-20220212081637-6692c4acb8eb/go.mod h1:rtKLkhMEi2YjsrXaNztT4uagUOPBxf6a+TNREkG097I=
 github.com/RomiChan/protobuf v0.0.0-20211223055824-048df49a8956 h1:hnaAkKz4t+xpSNVp5mnuloRMd3Rj2Lfg5biZ3emv//c=
 github.com/RomiChan/protobuf v0.0.0-20211223055824-048df49a8956/go.mod h1:CKKOWC7mBxd36zxsCB1V8DTrwlTNRQvkSVbYqyUiGEE=
 github.com/RomiChan/websocket v1.4.3-0.20220123145318-307a86b127bc h1:AAx50/fb/xS4lvsdQg+bFbGvqSDhyV1MF+p2PLCamZ0=