diff --git a/CS314/iot-gui/yarn.lock b/CS314/iot-gui/yarn.lock
index fbe0c1e7..483dd6ca 100644
--- a/CS314/iot-gui/yarn.lock
+++ b/CS314/iot-gui/yarn.lock
@@ -391,9 +391,9 @@ has-flag@^3.0.0:
   integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
 
 http-cache-semantics@^4.0.0:
-  version "4.1.0"
-  resolved "https://registry.npm.taobao.org/http-cache-semantics/download/http-cache-semantics-4.1.0.tgz?cache=0&sync_timestamp=1583107845365&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fhttp-cache-semantics%2Fdownload%2Fhttp-cache-semantics-4.1.0.tgz#49e91c5cbf36c9b94bcfcd71c23d5249ec74e390"
-  integrity sha1-SekcXL82yblLz81xwj1SSex045A=
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/http-cache-semantics/-/http-cache-semantics-4.1.1.tgz#abe02fcb2985460bf0323be664436ec3476a6d5a"
+  integrity sha512-er295DKPVsV82j5kw1Gjt+ADA/XYHsajl82cGNQG2eyoPkvgUhX+nDIyelzhIWbbsXP39EHcI6l5tYs2FYqYXQ==
 
 inflight@^1.0.4:
   version "1.0.6"