composer install error: [ErrorException] Undefined variable: http_response_header

When running drush I get the following error:

One or more extensions have dependencies managed by Composer.
Update packages managed by Composer? (y/n): y
Loading composer repositories with package information
Undefined variable: http_response_header
https://packagist.org could not be fully loaded, package information was loaded from the local cache and may be out of date
Updating dependencies (including require-dev)

[ErrorException]
Undefined variable: http_response_header

update [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--lock] [--no-plugins] [--no-custom-installers] [--no-autoloader] [--no-scripts] [--no-progress] [--with-dependencies] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [-i|--interactive] [--root-reqs] [--] [
]...