diff --git a/coolq/bot.go b/coolq/bot.go
index faea0443..204e5c3a 100644
--- a/coolq/bot.go
+++ b/coolq/bot.go
@@ -25,6 +25,7 @@ type CQBot struct {
 	friendReqCache  sync.Map
 	invitedReqCache sync.Map
 	joinReqCache    sync.Map
+	tempMsgCache    sync.Map
 }
 
 type MSG map[string]interface{}
@@ -101,7 +102,7 @@ func (bot *CQBot) SendGroupMessage(groupId int64, m *message.SendingMessage) int
 			continue
 		}
 		if i, ok := elem.(*message.VoiceElement); ok {
-			gv, err := bot.Client.UploadGroupPtt(groupId, i.Data, int32(len(i.Data)))
+			gv, err := bot.Client.UploadGroupPtt(groupId, i.Data)
 			if err != nil {
 				log.Warnf("警告: 群 %v 消息语音上传失败: %v", groupId, err)
 				continue
@@ -122,7 +123,7 @@ func (bot *CQBot) SendPrivateMessage(target int64, m *message.SendingMessage) in
 		if i, ok := elem.(*message.ImageElement); ok {
 			fm, err := bot.Client.UploadPrivateImage(target, i.Data)
 			if err != nil {
-				log.Warnf("警告: 好友 %v 消息图片上传失败.", target)
+				log.Warnf("警告: 私聊 %v 消息图片上传失败.", target)
 				continue
 			}
 			newElem = append(newElem, fm)
@@ -131,8 +132,17 @@ func (bot *CQBot) SendPrivateMessage(target int64, m *message.SendingMessage) in
 		newElem = append(newElem, elem)
 	}
 	m.Elements = newElem
-	ret := bot.Client.SendPrivateMessage(target, m)
-	return ToGlobalId(target, ret.Id)
+	var id int32
+	if bot.Client.FindFriend(target) != nil {
+		id = bot.Client.SendPrivateMessage(target, m).Id
+	} else {
+		if code, ok := bot.tempMsgCache.Load(target); ok {
+			id = bot.Client.SendTempMessage(code.(int64), target, m).Id
+		} else {
+			return -1
+		}
+	}
+	return ToGlobalId(target, id)
 }
 
 func (bot *CQBot) InsertGroupMessage(m *message.GroupMessage) int32 {
diff --git a/coolq/event.go b/coolq/event.go
index d8a20c5b..23a9ef16 100644
--- a/coolq/event.go
+++ b/coolq/event.go
@@ -119,6 +119,7 @@ func (bot *CQBot) groupMessageEvent(c *client.QQClient, m *message.GroupMessage)
 func (bot *CQBot) tempMessageEvent(c *client.QQClient, m *message.TempMessage) {
 	checkImage(m.Elements)
 	cqm := ToStringMessage(m.Elements, 0, true)
+	bot.tempMsgCache.Store(m.Sender.Uin, m.GroupCode)
 	log.Infof("收到来自群 %v(%v) 内 %v(%v) 的临时会话消息: %v", m.GroupName, m.GroupCode, m.Sender.DisplayName(), m.Sender.Uin, cqm)
 	tm := MSG{
 		"post_type":    "message",
diff --git a/go.mod b/go.mod
index fed43e59..c7f92da5 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/Mrs4s/go-cqhttp
 go 1.14
 
 require (
-	github.com/Mrs4s/MiraiGo v0.0.0-20200808044635-cd20d7d43dbb
+	github.com/Mrs4s/MiraiGo v0.0.0-20200809213751-626638e899eb
 	github.com/gin-gonic/gin v1.6.3
 	github.com/gorilla/websocket v1.4.2
 	github.com/guonaihong/gout v0.1.1
diff --git a/go.sum b/go.sum
index a3a1329c..64816372 100644
--- a/go.sum
+++ b/go.sum
@@ -6,6 +6,8 @@ github.com/Mrs4s/MiraiGo v0.0.0-20200808003732-2a32e623270d h1:K9jHdcO13mLqQB0xm
 github.com/Mrs4s/MiraiGo v0.0.0-20200808003732-2a32e623270d/go.mod h1:0je03wji/tSw4bUH4QCF2Z4/EjyNWjSJTyy5tliX6EM=
 github.com/Mrs4s/MiraiGo v0.0.0-20200808044635-cd20d7d43dbb h1:XLe/UreYJRT65GStA3+irRL1Ao0pHZwBtCmTc+4prwA=
 github.com/Mrs4s/MiraiGo v0.0.0-20200808044635-cd20d7d43dbb/go.mod h1:0je03wji/tSw4bUH4QCF2Z4/EjyNWjSJTyy5tliX6EM=
+github.com/Mrs4s/MiraiGo v0.0.0-20200809213751-626638e899eb h1:Upu/wTiTri0hMotSR76APxFo5PQX76iD5nMfl2/Ykt4=
+github.com/Mrs4s/MiraiGo v0.0.0-20200809213751-626638e899eb/go.mod h1:0je03wji/tSw4bUH4QCF2Z4/EjyNWjSJTyy5tliX6EM=
 github.com/bwmarrin/snowflake v0.3.0 h1:xm67bEhkKh6ij1790JB83OujPR5CzNe8QuQqAgISZN0=
 github.com/bwmarrin/snowflake v0.3.0/go.mod h1:NdZxfVWX+oR6y2K0o6qAYv6gIOP9rjG0/E9WsDpxqwE=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=