---
title: npm-update
section: 1
description: Update packages
---

### Synopsis

```bash
npm update [-g] [<pkg>...]

aliases: up, upgrade
```

### Description

This command will update all the packages listed to the latest version
(specified by the `tag` config), respecting semver.

It will also install missing packages. As with all commands that install
packages, the `--dev` flag will cause `devDependencies` to be processed
as well.

If the `-g` flag is specified, this command will update globally installed
packages.

If no package name is specified, all packages in the specified location (global
or local) will be updated.

### Example

For the examples below, assume that the current package is `app` and it depends
on dependencies, `dep1` (`dep2`, .. etc.).  The published versions of `dep1`
are:

```json
{
  "dist-tags": { "latest": "1.2.2" },
  "versions": [
    "1.2.2",
    "1.2.1",
    "1.2.0",
    "1.1.2",
    "1.1.1",
    "1.0.0",
    "0.4.1",
    "0.4.0",
    "0.2.0"
  ]
}
```

#### Caret Dependencies

If `app`'s `package.json` contains:

```json
"dependencies": {
  "dep1": "^1.1.1"
}
```

Then `npm update` will install `dep1@1.2.2`, because `1.2.2` is `latest` and
`1.2.2` satisfies `^1.1.1`.

#### Tilde Dependencies

However, if `app`'s `package.json` contains:

```json
"dependencies": {
  "dep1": "~1.1.1"
}
```

In this case, running `npm update` will install `dep1@1.1.2`.  Even though the
`latest` tag points to `1.2.2`, this version do not satisfy `~1.1.1`, which is
equivalent to `>=1.1.1 <1.2.0`.  So the highest-sorting version that satisfies
`~1.1.1` is used, which is `1.1.2`.

#### Caret Dependencies below 1.0.0

Suppose `app` has a caret dependency on a version below `1.0.0`, for example:

```json
"dependencies": {
  "dep1": "^0.2.0"
}
```

`npm update` will install `dep1@0.2.0`, because there are no other
versions which satisfy `^0.2.0`.

If the dependence were on `^0.4.0`:

```json
"dependencies": {
  "dep1": "^0.4.0"
}
```

Then `npm update` will install `dep1@0.4.1`, because that is the highest-sorting
version that satisfies `^0.4.0` (`>= 0.4.0 <0.5.0`)


#### Updating Globally-Installed Packages

`npm update -g` will apply the `update` action to each globally installed
package that is `outdated` -- that is, has a version that is different from
`wanted`.

Note: Globally installed packages are treated as if they are installed with a
caret semver range specified. So if you require to update to `latest` you may
need to run `npm install -g [<pkg>...]`

NOTE: If a package has been upgraded to a version newer than `latest`, it will
be _downgraded_.


### See Also

* [npm install](/commands/npm-install)
* [npm outdated](/commands/npm-outdated)
* [npm shrinkwrap](/commands/npm-shrinkwrap)
* [npm registry](/using-npm/registry)
* [npm folders](/configuring-npm/folders)
* [npm ls](/commands/npm-ls)