# poetry update > Update the dependencies as according to the `pyproject.toml` file. > More information: . - Update all dependencies: `poetry update` - Update one or more specific packages: `poetry update {{package1 package2 ...}}` - Update the lock file only, without installing the packages: `poetry update --lock` - Synchronize the environment with the locked packages: `poetry update --sync` - Update dependencies only for a specific group: `poetry update --only {{group_name}}` - Simulate the update process without making changes: `poetry update --dry-run`