diff --git a/coolq/bot.go b/coolq/bot.go
index d27ff7b..6d34bda 100644
--- a/coolq/bot.go
+++ b/coolq/bot.go
@@ -23,12 +23,13 @@ import (
 type CQBot struct {
 	Client *client.QQClient
 
-	events            []func(MSG)
-	db                *nutsdb.DB
-	friendReqCache    sync.Map
-	invitedReqCache   sync.Map
-	joinReqCache      sync.Map
-	tempMsgCache      sync.Map
+	events          []func(MSG)
+	db              *nutsdb.DB
+	friendReqCache  sync.Map
+	invitedReqCache sync.Map
+	joinReqCache    sync.Map
+	tempMsgCache    sync.Map
+	oneWayMsgCache  sync.Map
 }
 
 type MSG map[string]interface{}
@@ -166,12 +167,15 @@ func (bot *CQBot) SendPrivateMessage(target int64, m *message.SendingMessage) in
 		if msg != nil {
 			id = msg.Id
 		}
-	} else {
-		if code, ok := bot.tempMsgCache.Load(target); ok {
-			msg := bot.Client.SendTempMessage(code.(int64), target, m)
-			if msg != nil {
-				id = msg.Id
-			}
+	} else if code, ok := bot.tempMsgCache.Load(target); ok {
+		msg := bot.Client.SendTempMessage(code.(int64), target, m)
+		if msg != nil {
+			id = msg.Id
+		}
+	} else if _, ok := bot.oneWayMsgCache.Load(target); ok {
+		msg := bot.Client.SendPrivateMessage(target, m)
+		if msg != nil {
+			id = msg.Id
 		}
 	}
 	if id == -1 {
diff --git a/coolq/event.go b/coolq/event.go
index 142e096..e91a0ed 100644
--- a/coolq/event.go
+++ b/coolq/event.go
@@ -32,6 +32,9 @@ func ToFormattedMessage(e []message.IMessageElement, code int64, raw ...bool) (r
 func (bot *CQBot) privateMessageEvent(c *client.QQClient, m *message.PrivateMessage) {
 	bot.checkMedia(m.Elements)
 	cqm := ToStringMessage(m.Elements, 0, true)
+	if !m.Sender.IsFriend {
+		bot.oneWayMsgCache.Store(m.Sender.Uin, "")
+	}
 	log.Infof("收到好友 %v(%v) 的消息: %v", m.Sender.DisplayName(), m.Sender.Uin, cqm)
 	fm := MSG{
 		"post_type":    "message",
diff --git a/go.mod b/go.mod
index c227ae1..017cc9d 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 v0.0.0-20200825052841-d3b0f5f9e839
+	github.com/Mrs4s/MiraiGo v0.0.0-20200827162217-d7e61afdfe07
 	github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239 // indirect
 	github.com/gin-gonic/gin v1.6.3
 	github.com/gorilla/websocket v1.4.2
diff --git a/go.sum b/go.sum
index 49aaf0a..7d781a6 100644
--- a/go.sum
+++ b/go.sum
@@ -2,6 +2,8 @@ cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Mrs4s/MiraiGo v0.0.0-20200825052841-d3b0f5f9e839 h1:TDhaPfWcubIMKDz1HU+N07SwIUjj7oVUQ7EXZBbDUxs=
 github.com/Mrs4s/MiraiGo v0.0.0-20200825052841-d3b0f5f9e839/go.mod h1:0je03wji/tSw4bUH4QCF2Z4/EjyNWjSJTyy5tliX6EM=
+github.com/Mrs4s/MiraiGo v0.0.0-20200827162217-d7e61afdfe07 h1:AO8HeAS3GbUIfLQHlM7sPfYYN/KsKUpTTB+gVZNvo30=
+github.com/Mrs4s/MiraiGo v0.0.0-20200827162217-d7e61afdfe07/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=