{
    "name": "heureka/overeno-zakazniky",
    "description": "Heureka 'Ověřeno zákazníky' (ShopCertification) service API implementation",
    "license": "MIT",
    "authors": [
        {
            "name": "Heureka.cz",
            "email": "podpora@heureka.cz"
        }
    ],
    "require": {
        "php": ">=5.4.0"
    },
    "suggest": {
        "ext-curl": "Simplifies the library usage (you don't have to provide your own requester)"
    },
    "require-dev": {
        "phpunit/phpunit": "~9.5.0",
        "mockery/mockery": "~1.4.3"
    },
    "autoload": {
        "psr-4": {
            "Heureka\\": ["src/", "tests"]
        }
    }
}

{
    "name": "heureka/overeno-zakazniky",
    "description": "Heureka 'Ověřeno zákazníky' (ShopCertification) service API implementation",
    "license": "MIT",
    "authors": [
        {
            "name": "Heureka.cz",
            "email": "podpora@heureka.cz"
        }
    ],
    "require": {
        "php": ">=7.3"
    },
    "suggest": {
        "ext-curl": "Simplifies the library usage (you don't have to provide your own requester)"
    },
    "require-dev": {
        "phpunit/phpunit": "~9.5.0",
        "mockery/mockery": "~1.4.3"
    },
    "autoload": {
        "psr-4": {
            "Heureka\\": ["src/", "tests"]
        }
    }
}

Update required php version to >= 7.3
Update required php version to >= 7.3
