The version constraint in your composer.json requires deployer ^7.0. However Hypernode Deployer is not compatible with 7.4 https://github.com/ByteInternet/hypernode-deploy-configuration/blob/6eddfb953f36cef655703d722928a5be97aaafe3/composer.json#L19 _Note: The PHP deployer release receipt on >=7.4 fails when using PHP deployer 7.3_