diff --git a/CS314/iot-gui/package.json b/CS314/iot-gui/package.json
index d7db608c..9a98e944 100644
--- a/CS314/iot-gui/package.json
+++ b/CS314/iot-gui/package.json
@@ -12,7 +12,7 @@
     "start": "npm run build && electron ./dist/main.js"
   },
   "devDependencies": {
-    "electron": "^8.2.5",
+    "electron": "^8.5.1",
     "tslint": "^6.1.2",
     "typescript": "^3.8.3"
   }
diff --git a/CS314/iot-gui/yarn.lock b/CS314/iot-gui/yarn.lock
index fbe0c1e7..a024fbbb 100644
--- a/CS314/iot-gui/yarn.lock
+++ b/CS314/iot-gui/yarn.lock
@@ -230,10 +230,10 @@ duplexer3@^0.1.4:
   resolved "https://registry.npm.taobao.org/duplexer3/download/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
   integrity sha1-7gHdHKwO08vH/b6jfcCo8c4ALOI=
 
-electron@^8.2.5:
-  version "8.2.5"
-  resolved "https://registry.npm.taobao.org/electron/download/electron-8.2.5.tgz#ae3cb23d5517b2189fd35298e487198d65d1a291"
-  integrity sha1-rjyyPVUXshif01KY5IcZjWXRopE=
+electron@^8.5.1:
+  version "8.5.1"
+  resolved "https://registry.yarnpkg.com/electron/-/electron-8.5.1.tgz#db1c0c1dab16bfa3ac87bfc4c0ad86d43c3cfff4"
+  integrity sha512-bsjMmjERUKFFh9JRX77rB/m3PizgxJvtAYnUkLFOj4nYofpRhaABkOSCzH/e/tPwHyu/PYh0oDfSXW6IEwG4gQ==
   dependencies:
     "@electron/get" "^1.0.1"
     "@types/node" "^12.0.12"