diff --git a/package.json b/package.json
index dbc333de..0d728018 100644
--- a/package.json
+++ b/package.json
@@ -86,6 +86,7 @@
     "chalk": "2.4.2",
     "chokidar": "2.1.5",
     "connect": "3.6.6",
+    "core-js": "^2.6.11",
     "eslint": "5.15.3",
     "eslint-plugin-vue": "5.2.2",
     "html-webpack-plugin": "3.2.0",