diff --git a/fs/s3_adapter.go b/fs/s3_adapter.go
index 67a4e83..85a3740 100644
--- a/fs/s3_adapter.go
+++ b/fs/s3_adapter.go
@@ -171,7 +171,7 @@ func (s *S3Adapter) GetFileList(ctx context.Context, dirPath string, relDt time.
 
 	cacheItem := cacheItem{
 		data:    fileList,
-		expires: time.Now().Add(10 * time.Second),
+		expires: time.Now().Add(30 * time.Second),
 	}
 	s3Cache.Store(cacheKey, cacheItem)
 	log.Println("缓存文件列表", cacheKey)