Installation error "The checksum verification of the file failed"

Hi! I'm getting this error while installing Magento 2.2.5 metapackage. Version of this package is locked at 1.2.0

• Installing magento/composer (1.2.0): Downloading https://api.github.com/repos/magento/composer/zipball/130753af2b755f1967e253deb661225942bb302c
  Downloading (connecting...)
  Following redirect (2) https://codeload.github.com/magento/composer/legacy.zip/130753af2b755f1967e253deb661225942bb302c
  Downloading https://codeload.github.com/magento/composer/legacy.zip/130753af2b755f1967e253deb661225942bb302c
  Downloading (100%)Writing /home/andrej/.cache/composer/files/magento/composer/cb127348c0bb164392460cc8e62b6ceca9dd20ca.zip into cache from /home/andrej/projects/M2.2/eplehuset/vendor/magento/composer/dba449468119e0cef591df8e93d5f5dd

Failed: [UnexpectedValueException] 0: The checksum verification of the file failed (downloaded from https://api.github.com/repos/magento/composer/zipball/130753af2b755f1967e253deb661225942bb302c)

[UnexpectedValueException]
The checksum verification of the file failed (downloaded from https://api.github.com/repos/magento/composer/zipball/130753af2b755f1967e253deb661225942bb302c)

Exception trace:
() at phar:///usr/local/bin/composer/src/Composer/Downloader/FileDownloader.php:178
Composer\Downloader\FileDownloader->doDownload() at phar:///usr/local/bin/composer/src/Composer/Downloader/FileDownloader.php:94
Composer\Downloader\FileDownloader->download() at phar:///usr/local/bin/composer/src/Composer/Downloader/ArchiveDownloader.php:36
Composer\Downloader\ArchiveDownloader->download() at phar:///usr/local/bin/composer/src/Composer/Downloader/ZipDownloader.php:71
Composer\Downloader\ZipDownloader->download() at phar:///usr/local/bin/composer/src/Composer/Downloader/DownloadManager.php:213
Composer\Downloader\DownloadManager->download() at phar:///usr/local/bin/composer/src/Composer/Installer/LibraryInstaller.php:186
Composer\Installer\LibraryInstaller->installCode() at phar:///usr/local/bin/composer/src/Composer/Installer/LibraryInstaller.php:90
Composer\Installer\LibraryInstaller->install() at phar:///usr/local/bin/composer/src/Composer/Installer/InstallationManager.php:173
Composer\Installer\InstallationManager->install() at phar:///usr/local/bin/composer/src/Composer/Installer/InstallationManager.php:160
Composer\Installer\InstallationManager->execute() at phar:///usr/local/bin/composer/src/Composer/Installer.php:588
Composer\Installer->doInstall() at phar:///usr/local/bin/composer/src/Composer/Installer.php:227
Composer\Installer->run() at phar:///usr/local/bin/composer/src/Composer/Command/InstallCommand.php:119
Composer\Command\InstallCommand->execute() at phar:///usr/local/bin/composer/vendor/symfony/console/Command/Command.php:242
Symfony\Component\Console\Command\Command->run() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:842
Symfony\Component\Console\Application->doRunCommand() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:193
Symfony\Component\Console\Application->doRun() at phar:///usr/local/bin/composer/src/Composer/Console/Application.php:251
Composer\Console\Application->doRun() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:117
Symfony\Component\Console\Application->run() at phar:///usr/local/bin/composer/src/Composer/Console/Application.php:100
Composer\Console\Application->run() at phar:///usr/local/bin/composer/bin/composer:58
require() at /usr/local/bin/composer:24

Start at phar:///usr/local/bin/composer/src/Composer/Downloader/FileDownloader.php:178 and inspect the download path for magento/composer 1.2.0 from the URLs in the report. Reproduce the Magento 2.2.5 installation if possible, determine why the downloaded checksum differs, and document or correct the verification failure.