NAME

       cargo-update — Update dependencies as recorded in the local lock file

SYNOPSIS

       cargo update [options] spec

DESCRIPTION

       This command will update dependencies in the Cargo.lock file to the latest version. If the
       Cargo.lock file does not exist, it will be created with the latest available versions.

OPTIONS

   Update Options
       spec…
           Update only the specified packages. This flag may be specified multiple times. See
           cargo-pkgid(1) for the SPEC format.

           If packages are specified with spec, then a conservative update of the lockfile will
           be performed. This means that only the dependency specified by SPEC will be updated.
           Its transitive dependencies will be updated only if SPEC cannot be updated without
           updating dependencies. All other dependencies will remain locked at their currently
           recorded versions.

           If spec is not specified, all dependencies are updated.

       --recursive
           When used with spec, dependencies of spec are forced to update as well. Cannot be used
           with --precise.

       --precise precise
           When used with spec, allows you to specify a specific version number to set the
           package to. If the package comes from a git repository, this can be a git revision
           (such as a SHA hash or tag).

       -w, --workspace
           Attempt to update only packages defined in the workspace. Other packages are updated
           only if they don’t already exist in the lockfile. This option is useful for updating
           Cargo.lock after you’ve changed version numbers in Cargo.toml.

       --dry-run
           Displays what would be updated, but doesn’t actually write the lockfile.

   Display Options
       -v, --verbose
           Use verbose output. May be specified twice for “very verbose” output which includes
           extra output such as dependency warnings and build script output. May also be
           specified with the term.verbose config value
           <https://doc.rust-lang.org/cargo/reference/config.html>.

       -q, --quiet
           Do not print cargo log messages. May also be specified with the term.quiet config
           value <https://doc.rust-lang.org/cargo/reference/config.html>.

       --color when
           Control when colored output is used. Valid values:

           •  auto (default): Automatically detect if color support is available on the terminal.

           •  always: Always display colors.

           •  never: Never display colors.

           May also be specified with the term.color config value
           <https://doc.rust-lang.org/cargo/reference/config.html>.

   Manifest Options
       --manifest-path path
           Path to the Cargo.toml file. By default, Cargo searches for the Cargo.toml file in the
           current directory or any parent directory.

       --frozen, --locked
           Either of these flags requires that the Cargo.lock file is up-to-date. If the lock
           file is missing, or it needs to be updated, Cargo will exit with an error. The
           --frozen flag also prevents Cargo from attempting to access the network to determine
           if it is out-of-date.

           These may be used in environments where you want to assert that the Cargo.lock file is
           up-to-date (such as a CI build) or want to avoid network access.

       --offline
           Prevents Cargo from accessing the network for any reason. Without this flag, Cargo
           will stop with an error if it needs to access the network and the network is not
           available. With this flag, Cargo will attempt to proceed without the network if
           possible.

           Beware that this may result in different dependency resolution than online mode. Cargo
           will restrict itself to crates that are downloaded locally, even if there might be a
           newer version as indicated in the local copy of the index. See the cargo-fetch(1)
           command to download dependencies before going offline.

           May also be specified with the net.offline config value
           <https://doc.rust-lang.org/cargo/reference/config.html>.

   Common Options
       +toolchain
           If Cargo has been installed with rustup, and the first argument to cargo begins with
           +, it will be interpreted as a rustup toolchain name (such as +stable or +nightly).
           See the rustup documentation <https://rust-lang.github.io/rustup/overrides.html> for
           more information about how toolchain overrides work.

       --config KEY=VALUE or PATH
           Overrides a Cargo configuration value. The argument should be in TOML syntax of
           KEY=VALUE, or provided as a path to an extra configuration file. This flag may be
           specified multiple times. See the command-line overrides section
           <https://doc.rust-lang.org/cargo/reference/config.html#command-line-overrides> for
           more information.

       -C PATH
           Changes the current working directory before executing any specified operations. This
           affects things like where cargo looks by default for the project manifest
           (Cargo.toml), as well as the directories searched for discovering .cargo/config.toml,
           for example. This option must appear before the command name, for example cargo -C
           path/to/my-project build.

           This option is only available on the nightly channel
           <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html> and requires the -Z
           unstable-options flag to enable (see #10098
           <https://github.com/rust-lang/cargo/issues/10098>).

       -h, --help
           Prints help information.

       -Z flag
           Unstable (nightly-only) flags to Cargo. Run cargo -Z help for details.

ENVIRONMENT

       See the reference <https://doc.rust-lang.org/cargo/reference/environment-variables.html>
       for details on environment variables that Cargo reads.

EXIT STATUS

       •  0: Cargo succeeded.

       •  101: Cargo failed to complete.

EXAMPLES

        1. Update all dependencies in the lockfile:

               cargo update

        2. Update only specific dependencies:

               cargo update foo bar

        3. Set a specific dependency to a specific version:

               cargo update foo --precise 1.2.3

SEE ALSO

       cargo(1), cargo-generate-lockfile(1)

                                                                                  CARGO-UPDATE(1)