diff --git a/package.json b/package.json
index c6aa6806..7457f36e 100644
--- a/package.json
+++ b/package.json
@@ -54,6 +54,7 @@
     "@vue/component-compiler-utils": "^3.2.0",
     "babel-eslint": "^10.1.0",
     "compression-webpack-plugin": "^8.0.1",
+    "cross-env": "^7.0.3",
     "eslint": "^7.22.0",
     "eslint-config-standard": "^16.0.2",
     "eslint-plugin-import": "^2.22.1",