diff --git a/route/v1/user.go b/route/v1/user.go
index 5237b58..5cd974d 100644
--- a/route/v1/user.go
+++ b/route/v1/user.go
@@ -229,6 +229,7 @@ func GetUserAvatar(c *gin.Context) {
 	}
 	user.Avatar = "/usr/share/casaos/www/avatar.svg"
 	c.Header("Content-Disposition", "attachment; filename*=utf-8''"+url2.PathEscape(path.Base(user.Avatar)))
+	c.Header("Cache-Control", "no-cache, no-store, max-age=0, must-revalidate, value")
 	c.File(user.Avatar)
 }