diff --git a/CS314/iot-gui/yarn.lock b/CS314/iot-gui/yarn.lock
index fbe0c1e7..7a26ff40 100644
--- a/CS314/iot-gui/yarn.lock
+++ b/CS314/iot-gui/yarn.lock
@@ -512,9 +512,9 @@ ms@^2.1.1:
   integrity sha1-0J0fNXtEP0kzgqjrPM0YOHKuYAk=
 
 normalize-url@^4.1.0:
-  version "4.5.0"
-  resolved "https://registry.npm.taobao.org/normalize-url/download/normalize-url-4.5.0.tgz#453354087e6ca96957bd8f5baf753f5982142129"
-  integrity sha1-RTNUCH5sqWlXvY9br3U/WYIUISk=
+  version "4.5.1"
+  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.5.1.tgz#0dd90cf1288ee1d1313b87081c9a5932ee48518a"
+  integrity sha512-9UZCFRHQdNrfTpGg8+1INIg93B6zE0aXMVFkw1WFwvO4SlZywU6aLg5Of0Ap/PgcbSw4LNxvMWXMeugwMCX0AA==
 
 npm-conf@^1.1.3:
   version "1.1.3"