diff --git a/routers/repo/attachment_dir.go b/routers/repo/attachment_dir.go
index 82e0074f82..5af24b5c62 100644
--- a/routers/repo/attachment_dir.go
+++ b/routers/repo/attachment_dir.go
@@ -37,6 +37,8 @@ func GetDirSomeFiles(ctx *context.Context) {
 		cacheResult, err := getAttachmentDirFromCache(cacheKey)
 		if err == nil {
 			log.Info("load from cache.")
+			//update redis status
+			setAttachmentDirToCache(cacheKey, *cacheResult)
 			ctx.JSON(200, map[string]interface{}{
 				"result_code": "0",
 				"data":        cacheResult.DirList,
@@ -338,7 +340,7 @@ func setAttachmentDirToCache(msgKey string, dirList DirRedisCache) {
 	msgMapJson, _ := json.Marshal(dirList)
 	redisValue := string(msgMapJson)
 	log.Info("set redis key=" + msgKey + " value=" + redisValue)
-	re, err := redis_client.Setex(msgKey, redisValue, 7*24*3600*time.Second)
+	re, err := redis_client.Setex(msgKey, redisValue, 30*24*3600*time.Second)
 	if err == nil {
 		log.Info("re =" + fmt.Sprint(re))
 	} else {