---
title: NO_POSTINSTALL_SCRIPT
product: vercel
url: /docs/conformance/rules/NO_POSTINSTALL_SCRIPT
type: conceptual
prerequisites:
  []
related:
  []
summary: "Prevent the use of `\"postinstall\"` script in packages."
install_vercel_plugin: npx plugins add vercel/vercel-plugin
---

# NO_POSTINSTALL_SCRIPT

> **🔒 Permissions Required**: Conformance

Modifying, adding, or updating any dependencies in your application triggers the execution of the `"postinstall"` script. Consequently, incorporating a `"postinstall"` script in your application's package.json leads to increased installation times for all users.

## How to fix

If you hit this issue, you can resolve it by removing the `"postinstall"` script in the `package.json` file.

```JSX filename="package.json" {3}
{
  "scripts": {
    "postinstall": "sleep 360"
  },
}
```


---

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