diff --git a/pkg/authn/auth.go b/pkg/authn/auth.go
index 7cd36a7..98742ce 100644
--- a/pkg/authn/auth.go
+++ b/pkg/authn/auth.go
@@ -4,12 +4,16 @@ import (
 	model "github.com/HFO4/cloudreve/models"
 	"github.com/HFO4/cloudreve/pkg/util"
 	"github.com/duo-labs/webauthn/webauthn"
+	"sync"
 )
 
 var AuthnInstance *webauthn.WebAuthn
+var Lock sync.RWMutex
 
 // Init 初始化webauthn
 func Init() {
+	Lock.Lock()
+	defer Lock.Unlock()
 	var err error
 	base := model.GetSiteURL()
 	AuthnInstance, err = webauthn.New(&webauthn.Config{
diff --git a/routers/controllers/admin.go b/routers/controllers/admin.go
index 41ac1d5..44f9eda 100644
--- a/routers/controllers/admin.go
+++ b/routers/controllers/admin.go
@@ -1,7 +1,9 @@
 package controllers
 
 import (
+	"github.com/HFO4/cloudreve/pkg/authn"
 	"github.com/HFO4/cloudreve/pkg/request"
+	"github.com/HFO4/cloudreve/pkg/serializer"
 	"github.com/HFO4/cloudreve/service/admin"
 	"github.com/gin-gonic/gin"
 	"io"
@@ -57,3 +59,14 @@ func AdminGetGroups(c *gin.Context) {
 		c.JSON(200, ErrorResponse(err))
 	}
 }
+
+// AdminReloadService 重新加载子服务
+func AdminReloadService(c *gin.Context) {
+	service := c.Param("service")
+	switch service {
+	case "authn":
+		authn.Init()
+	}
+
+	c.JSON(200, serializer.Response{})
+}
diff --git a/routers/controllers/user.go b/routers/controllers/user.go
index f378653..1d26f63 100644
--- a/routers/controllers/user.go
+++ b/routers/controllers/user.go
@@ -23,7 +23,10 @@ func StartLoginAuthn(c *gin.Context) {
 		return
 	}
 
+	authn.Lock.RLock()
 	options, sessionData, err := authn.AuthnInstance.BeginLogin(expectedUser)
+	authn.Lock.RUnlock()
+
 	if err != nil {
 		c.JSON(200, ErrorResponse(err))
 		return
@@ -55,7 +58,9 @@ func FinishLoginAuthn(c *gin.Context) {
 	var sessionData webauthn.SessionData
 	err = json.Unmarshal(sessionDataJSON, &sessionData)
 
+	authn.Lock.RLock()
 	_, err = authn.AuthnInstance.FinishLogin(expectedUser, sessionData, c.Request)
+	authn.Lock.RUnlock()
 
 	if err != nil {
 		c.JSON(200, serializer.Err(401, "登录验证失败", err))
@@ -71,7 +76,11 @@ func FinishLoginAuthn(c *gin.Context) {
 // StartRegAuthn 开始注册WebAuthn信息
 func StartRegAuthn(c *gin.Context) {
 	currUser := CurrentUser(c)
+
+	authn.Lock.RLock()
 	options, sessionData, err := authn.AuthnInstance.BeginRegistration(currUser)
+	authn.Lock.RUnlock()
+
 	if err != nil {
 		c.JSON(200, ErrorResponse(err))
 		return
@@ -97,7 +106,10 @@ func FinishRegAuthn(c *gin.Context) {
 	var sessionData webauthn.SessionData
 	err := json.Unmarshal(sessionDataJSON, &sessionData)
 
+	authn.Lock.RLock()
 	credential, err := authn.AuthnInstance.FinishRegistration(currUser, sessionData, c.Request)
+	authn.Lock.RUnlock()
+
 	if err != nil {
 		c.JSON(200, ErrorResponse(err))
 		return
diff --git a/routers/router.go b/routers/router.go
index 5a7da50..d676f75 100644
--- a/routers/router.go
+++ b/routers/router.go
@@ -299,6 +299,8 @@ func InitMasterRouter() *gin.Engine {
 				admin.POST("setting", controllers.AdminGetSetting)
 				// 获取用户组列表
 				admin.GET("groups", controllers.AdminGetGroups)
+				// 重新加载子服务
+				admin.GET("reload/:service", controllers.AdminReloadService)
 			}
 
 			// 用户