diff --git a/internal/acme/request.go b/internal/acme/request.go
index c57c4cec..4f39f964 100644
--- a/internal/acme/request.go
+++ b/internal/acme/request.go
@@ -57,7 +57,9 @@ func (this *Request) Run() (certData []byte, keyData []byte, err error) {
 
 func (this *Request) runDNS() (certData []byte, keyData []byte, err error) {
 	if !this.debug {
-		acmelog.Logger = log.New(io.Discard, "", log.LstdFlags)
+		if !Tea.IsTesting() {
+			acmelog.Logger = log.New(io.Discard, "", log.LstdFlags)
+		}
 	}
 
 	if this.task.User == nil {
diff --git a/internal/const/const.go b/internal/const/const.go
index e7dc1dd5..d71bd5ac 100644
--- a/internal/const/const.go
+++ b/internal/const/const.go
@@ -18,8 +18,8 @@ const (
 
 	// 其他节点版本号，用来检测是否有需要升级的节点
 
-	NodeVersion          = "0.5.7"
-	UserNodeVersion      = "0.5.7"
+	NodeVersion          = "0.5.6"
+	UserNodeVersion      = "0.5.6"
 	DNSNodeVersion       = "0.2.8"
 	AuthorityNodeVersion = "0.0.2"
 	MonitorNodeVersion   = "0.0.4"