diff --git a/src/utils/kkFilePreview.js b/src/utils/kkFilePreview.js
index 910fa8e5..e73a7957 100644
--- a/src/utils/kkFilePreview.js
+++ b/src/utils/kkFilePreview.js
@@ -3,7 +3,7 @@ import { USER_INFO } from '../store/mutation-types'
 import { Base64 } from 'js-base64'
 import md5 from 'md5'
 
-function fillZero (str) {
+function fillZero(str) {
   let realNum
   if (str < 10) {
     realNum = '0' + str
@@ -13,7 +13,7 @@ function fillZero (str) {
   return realNum
 }
 
-export function dealUrl (fileUrl) {
+export function dealUrl(fileUrl) {
   const userInfo = Vue.ls.get(USER_INFO)
   // 获取当前时间
   const date = new Date()
@@ -31,7 +31,7 @@ export function dealUrl (fileUrl) {
   // 路径增加时间戳
   const timestamp = new Date().getTime()
   fileUrl += `&time=${timestamp}&type=kkfile`
-  return `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileUrl))}&watermarkTxt=${encodeURIComponent(watermarkTxt)}&watermarkSign=${watermarkSign}`
+  return `${window._CONFIG.onlinePreviewDomainURL}?forceUpdatedCache=true&url=${encodeURIComponent(Base64.encode(fileUrl))}&watermarkTxt=${encodeURIComponent(watermarkTxt)}&watermarkSign=${watermarkSign}`
 }
 
 /**