---
title: fastly service vcl snippet update
summary: Update a VCL snippet for a particular service and version
url: https://www.fastly.com/documentation/reference/cli/service/vcl/snippet/update
---

Update a VCL snippet for a particular service and version

## Flags

| Flag | Description | Required | Default |
|------|-------------|----------|----------|
| `--version` | 'latest', 'active', or the number of a specific Fastly service version | Yes | - |
| `--autoclone` | If the selected service version is not editable, clone it and use the clone. | No | - |
| `--content` | VCL snippet passed as file path or content, e.g. $(< snippet.vcl) | No | - |
| `--dynamic` | Whether the VCL snippet is dynamic or versioned | No | - |
| `--name` | The name of the VCL snippet to update | No | - |
| `--new-name` | New name for the VCL snippet | No | - |
| `--priority` | Priority determines execution order. Lower numbers execute first | No | - |
| `--service-id` | Service ID (falls back to FASTLY_SERVICE_ID, then fastly.toml) | No | - |
| `--service-name` | The name of the service | No | - |
| `--snippet-id` | Alphanumeric string identifying a VCL Snippet | No | - |
| `--type` | The location in generated VCL where the snippet should be placed | No | - |

## Global options

| Flag | Description | Required | Default |
|------|-------------|----------|----------|
| `--help` | Show context-sensitive help. | No | - |
| `--accept-defaults` | Accept default options for all interactive prompts apart from Yes/No confirmations | No | - |
| `--auto-yes` | Answer yes automatically to all Yes/No confirmations. This may suppress security warnings | No | - |
| `--debug-mode` | Print API request and response details (NOTE: can disrupt the normal CLI flow output formatting) | No | - |
| `--non-interactive` | Do not prompt for user input - suitable for CI processes. Equivalent to --accept-defaults and --auto-yes | No | - |
| `--quiet` | Silence all output except direct command output. This won't prevent interactive prompts (see: --accept-defaults, --auto-yes, --non-interactive) | No | - |
| `--token` | Fastly API token, or name of a stored auth token (use 'default' for the default token). Falls back to FASTLY_API_TOKEN env var | No | - |
| `--verbose` | Verbose logging | No | - |