diff --git a/CS309/assignment2/package.json b/CS309/assignment2/package.json
index 181118f9..d84a4aeb 100644
--- a/CS309/assignment2/package.json
+++ b/CS309/assignment2/package.json
@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "element-ui": "^2.12.0",
-    "moment": "^2.24.0",
+    "moment": "^2.29.4",
     "vue": "^2.6.10"
   },
   "devDependencies": {
diff --git a/CS309/assignment2/yarn.lock b/CS309/assignment2/yarn.lock
index c83f098b..9f75904c 100644
--- a/CS309/assignment2/yarn.lock
+++ b/CS309/assignment2/yarn.lock
@@ -3245,10 +3245,10 @@ mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
   dependencies:
     minimist "0.0.8"
 
-moment@^2.24.0:
-  version "2.24.0"
-  resolved "https://registry.npm.taobao.org/moment/download/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
-  integrity sha1-DQVdU/UFKqZTyfbraLtdEr9cK1s=
+moment@^2.29.4:
+  version "2.29.4"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.29.4.tgz#3dbe052889fe7c1b2ed966fcb3a77328964ef108"
+  integrity sha512-5LC9SOxjSc2HF6vO2CyuTDNivEdoz2IvyJJGj6X8DJ0eFyfszE0QiEd+iXmBvUP3WHxSjFH/vIsA0EN00cgr8w==
 
 ms@2.0.0:
   version "2.0.0"