diff --git a/package.json b/package.json
index a42b6cac..9c3f79f2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "nodepress",
-  "version": "4.9.0",
+  "version": "4.9.1",
   "description": "RESTful API service for Surmon.me blog",
   "author": "Surmon",
   "license": "MIT",
diff --git a/src/modules/auth/auth.controller.ts b/src/modules/auth/auth.controller.ts
index 14647f9a..7fba88f7 100755
--- a/src/modules/auth/auth.controller.ts
+++ b/src/modules/auth/auth.controller.ts
@@ -33,9 +33,9 @@ export class AuthController {
     const token = await this.authService.adminLogin(body.password)
     if (ip) {
       this.ipService.queryLocation(ip).then((location) => {
-        const subject = `App has a new login activity.`
+        const subject = `App has a new login activity`
         const locationText = location ? [location.country, location.region, location.city].join(' · ') : 'unknow'
-        const content = `${subject}, IP: ${ip}, location: ${locationText}`
+        const content = `${subject}. IP: ${ip}, location: ${locationText}`
         this.emailService.sendMailAs(APP.NAME, {
           to: APP.ADMIN_EMAIL,
           subject,
diff --git a/src/modules/expansion/expansion.service.dbbackup.ts b/src/modules/expansion/expansion.service.dbbackup.ts
index 8341dac0..52c01e7f 100755
--- a/src/modules/expansion/expansion.service.dbbackup.ts
+++ b/src/modules/expansion/expansion.service.dbbackup.ts
@@ -46,7 +46,7 @@ export class DBBackupService {
     try {
       const result = await this.doBackup()
       const json = { ...result, size: (result.size / 1024).toFixed(2) + 'kb' }
-      this.mailToAdmin('Database backup succeeded.', JSON.stringify(json, null, 2), true)
+      this.mailToAdmin('Database backup succeeded', JSON.stringify(json, null, 2), true)
       return result
     } catch (error) {
       this.mailToAdmin('Database backup failed!', String(error))