diff --git a/coolq/bot.go b/coolq/bot.go
index 52219c3..5c41c28 100644
--- a/coolq/bot.go
+++ b/coolq/bot.go
@@ -5,6 +5,7 @@ import (
 	"encoding/gob"
 	"encoding/json"
 	"fmt"
+	"github.com/syndtr/goleveldb/leveldb"
 	"hash/crc32"
 	"path"
 	"sync"
@@ -17,14 +18,13 @@ import (
 
 	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
-	"github.com/xujiajun/nutsdb"
 )
 
 type CQBot struct {
 	Client *client.QQClient
 
 	events          []func(MSG)
-	db              *nutsdb.DB
+	db              *leveldb.DB
 	friendReqCache  sync.Map
 	invitedReqCache sync.Map
 	joinReqCache    sync.Map
@@ -41,14 +41,22 @@ func NewQQBot(cli *client.QQClient, conf *global.JsonConfig) *CQBot {
 		Client: cli,
 	}
 	if conf.EnableDB {
-		opt := nutsdb.DefaultOptions
-		opt.Dir = path.Join("data", "db")
-		opt.EntryIdxMode = nutsdb.HintBPTSparseIdxMode
-		db, err := nutsdb.Open(opt)
+		p := path.Join("data", "leveldb")
+		db, err := leveldb.OpenFile(p, nil)
 		if err != nil {
 			log.Fatalf("打开数据库失败, 如果频繁遇到此问题请清理 data/db 文件夹或关闭数据库功能。")
 		}
 		bot.db = db
+		/*
+			opt := nutsdb.DefaultOptions
+			opt.Dir = path.Join("data", "db")
+			opt.EntryIdxMode = nutsdb.HintBPTSparseIdxMode
+			db, err := nutsdb.Open(opt)
+			if err != nil {
+				log.Fatalf("打开数据库失败, 如果频繁遇到此问题请清理 data/db 文件夹或关闭数据库功能。")
+			}
+			bot.db = db
+		*/
 		gob.Register(message.Sender{})
 		log.Info("信息数据库初始化完成.")
 	} else {
@@ -103,17 +111,14 @@ func (bot *CQBot) OnEventPush(f func(m MSG)) {
 func (bot *CQBot) GetGroupMessage(mid int32) MSG {
 	if bot.db != nil {
 		m := MSG{}
-		err := bot.db.View(func(tx *nutsdb.Tx) error {
-			e, err := tx.Get("group-messages", binary.ToBytes(mid))
-			if err != nil {
-				return err
-			}
-			buff := new(bytes.Buffer)
-			buff.Write(binary.GZipUncompress(e.Value))
-			return gob.NewDecoder(buff).Decode(&m)
-		})
+		data, err := bot.db.Get(binary.ToBytes(mid), nil)
 		if err == nil {
-			return m
+			buff := new(bytes.Buffer)
+			buff.Write(binary.GZipUncompress(data))
+			err = gob.NewDecoder(buff).Decode(&m)
+			if err == nil {
+				return m
+			}
 		}
 		log.Warnf("获取信息时出现错误: %v id: %v", err, mid)
 	}
@@ -290,14 +295,12 @@ func (bot *CQBot) InsertGroupMessage(m *message.GroupMessage) int32 {
 	}
 	id := ToGlobalId(m.GroupCode, m.Id)
 	if bot.db != nil {
-		err := bot.db.Update(func(tx *nutsdb.Tx) error {
-			buf := new(bytes.Buffer)
-			if err := gob.NewEncoder(buf).Encode(val); err != nil {
-				return err
-			}
-			return tx.Put("group-messages", binary.ToBytes(id), binary.GZipCompress(buf.Bytes()), 0)
-		})
-		if err != nil {
+		buf := new(bytes.Buffer)
+		if err := gob.NewEncoder(buf).Encode(val); err != nil {
+			log.Warnf("记录聊天数据时出现错误: %v", err)
+			return -1
+		}
+		if err := bot.db.Put(binary.ToBytes(id), binary.GZipCompress(buf.Bytes()), nil); err != nil {
 			log.Warnf("记录聊天数据时出现错误: %v", err)
 			return -1
 		}
diff --git a/coolq/cqcode.go b/coolq/cqcode.go
index 63dbad7..d4c1f10 100644
--- a/coolq/cqcode.go
+++ b/coolq/cqcode.go
@@ -573,27 +573,27 @@ func (bot *CQBot) ToElement(t string, d map[string]string, group bool) (m messag
 	case "cardimage":
 		source := d["source"]
 		icon := d["icon"]
-		minwidth, _ := strconv.ParseInt(d["minwidth"], 10, 64)
-		if minwidth == 0 {
-			minwidth = 200
+		minWidth, _ := strconv.ParseInt(d["minwidth"], 10, 64)
+		if minWidth == 0 {
+			minWidth = 200
 		}
-		minheight, _ := strconv.ParseInt(d["minheight"], 10, 64)
-		if minheight == 0 {
-			minheight = 200
+		minHeight, _ := strconv.ParseInt(d["minheight"], 10, 64)
+		if minHeight == 0 {
+			minHeight = 200
 		}
-		maxwidth, _ := strconv.ParseInt(d["maxwidth"], 10, 64)
-		if maxwidth == 0 {
-			maxwidth = 500
+		maxWidth, _ := strconv.ParseInt(d["maxwidth"], 10, 64)
+		if maxWidth == 0 {
+			maxWidth = 500
 		}
-		maxheight, _ := strconv.ParseInt(d["maxheight"], 10, 64)
-		if maxheight == 0 {
-			maxheight = 1000
+		maxHeight, _ := strconv.ParseInt(d["maxheight"], 10, 64)
+		if maxHeight == 0 {
+			maxHeight = 1000
 		}
 		img, err := bot.makeImageElem(d, group)
 		if err != nil {
 			return nil, errors.New("send cardimage faild")
 		}
-		return bot.SendNewPic(img, source, icon, minwidth, minheight, maxwidth, maxheight, group)
+		return bot.SendNewPic(img, source, icon, minWidth, minHeight, maxWidth, maxHeight, group)
 	default:
 		return nil, errors.New("unsupported cq code: " + t)
 	}
diff --git a/go.mod b/go.mod
index 54ce09e..31bf4e9 100644
--- a/go.mod
+++ b/go.mod
@@ -12,10 +12,10 @@ require (
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/rifflock/lfshook v0.0.0-20180920164130-b9218ef580f5
 	github.com/sirupsen/logrus v1.7.0
+	github.com/syndtr/goleveldb v1.0.0
 	github.com/t-tomalak/logrus-easy-formatter v0.0.0-20190827215021-c074f06c5816
 	github.com/tidwall/gjson v1.6.1
 	github.com/wdvxdr1123/go-silk v0.0.0-20201007123416-b982fd3d91d6
-	github.com/xujiajun/nutsdb v0.5.0
 	github.com/yinghau76/go-ascii-art v0.0.0-20190517192627-e7f465a30189
 	golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e
 )
diff --git a/go.sum b/go.sum
index 844e617..a9f277c 100644
--- a/go.sum
+++ b/go.sum
@@ -10,6 +10,7 @@ github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.5.0/go.mod h1:Nd6IXA8m5kNZdNEHMBd93KT+mdY3+bewLgRvmCsR2Do=
@@ -37,6 +38,8 @@ github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvq
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.2 h1:+Z5KGCizgyZCbGh1KZqA0fcLLkwbsjIzS4aV2v7wJX0=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db h1:woRePGFeVFfLKN/pOkfl+p/TAqKOfFu+7KPlMVpok/w=
+github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
@@ -48,6 +51,7 @@ github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0U
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/guonaihong/gout v0.1.2 h1:TR2XCRopGgJdj231IayEoeavgbznFXzzzcZVdT/hG10=
 github.com/guonaihong/gout v0.1.2/go.mod h1:vXvv5Kxr70eM5wrp4F0+t9lnLWmq+YPW2GByll2f/EA=
+github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
@@ -66,6 +70,9 @@ github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJ
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
+github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
+github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
+github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -81,6 +88,8 @@ github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/syndtr/goleveldb v1.0.0 h1:fBdIW9lB4Iz0n9khmH8w27SJ3QEJ7+IgjPEwGSZiFdE=
+github.com/syndtr/goleveldb v1.0.0/go.mod h1:ZVVdQEZoIme9iO1Ch2Jdy24qqXrMMOU6lpPAyBWyWuQ=
 github.com/t-tomalak/logrus-easy-formatter v0.0.0-20190827215021-c074f06c5816 h1:J6v8awz+me+xeb/cUTotKgceAYouhIB3pjzgRd6IlGk=
 github.com/t-tomalak/logrus-easy-formatter v0.0.0-20190827215021-c074f06c5816/go.mod h1:tzym/CEb5jnFI+Q0k4Qq3+LvRF4gO3E2pxS8fHP8jcA=
 github.com/tidwall/gjson v1.6.1 h1:LRbvNuNuvAiISWg6gxLEFuCe72UKy5hDqhxW/8183ws=
@@ -111,6 +120,7 @@ golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvx
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 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=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa h1:F+8P+gmewFQYRk6JoLQLwjBCTu3mcIURZfNkVweuRKA=
@@ -120,6 +130,7 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181221143128-b4a75ba826a6/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -156,8 +167,11 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
 google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
 gopkg.in/go-playground/validator.v9 v9.29.1/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=