diff --git a/demo/package.json b/demo/package.json
index 5bacf7f8..2c70112f 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -10,7 +10,7 @@
     "lint": "vue-cli-service lint"
   },
   "dependencies": {
-    "core-js": "3.16.2",
+    "core-js": "3.33.3",
     "vue": "2.6.14",
     "vue-axios": "3.2.5",
     "vue-class-component": "7.2.6",
diff --git a/demo/yarn.lock b/demo/yarn.lock
index ce627b1d..f6c3588f 100644
--- a/demo/yarn.lock
+++ b/demo/yarn.lock
@@ -2826,16 +2826,21 @@ core-js-compat@^3.14.0, core-js-compat@^3.16.0, core-js-compat@^3.6.5:
     browserslist "^4.16.7"
     semver "7.0.0"
 
-core-js@3.16.2, core-js@^3.6.5:
-  version "3.16.2"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.16.2.tgz#3f485822889c7fc48ef463e35be5cc2a4a01a1f4"
-  integrity sha512-P0KPukO6OjMpjBtHSceAZEWlDD1M2Cpzpg6dBbrjFqFhBHe/BwhxaP820xKOjRn/lZRQirrCusIpLS/n2sgXLQ==
+core-js@3.33.3:
+  version "3.33.3"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.33.3.tgz#3c644a323f0f533a0d360e9191e37f7fc059088d"
+  integrity sha512-lo0kOocUlLKmm6kv/FswQL8zbkH7mVsLJ/FULClOhv8WRVmKLVcs6XPNQAzstfeJTCHMyButEwG+z1kHxHoDZw==
 
 core-js@^2.4.0:
   version "2.6.12"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.12.tgz#d9333dfa7b065e347cc5682219d6f690859cc2ec"
   integrity sha512-Kb2wC0fvsWfQrgk8HU5lW6U/Lcs8+9aaYcy4ZFc6DDlo4nZ7n70dEgE5rtR0oG6ufKDUnrwfWL1mXR5ljDatrQ==
 
+core-js@^3.6.5:
+  version "3.16.2"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.16.2.tgz#3f485822889c7fc48ef463e35be5cc2a4a01a1f4"
+  integrity sha512-P0KPukO6OjMpjBtHSceAZEWlDD1M2Cpzpg6dBbrjFqFhBHe/BwhxaP820xKOjRn/lZRQirrCusIpLS/n2sgXLQ==
+
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"