{
    "name": "michaeldegroot/doctrine-encrypt-bundle",
    "type": "library",
    "keywords": ["doctrine", "symfony", "halite", "defuse", "encrypt", "decrypt"],
    "license": "MIT",
    "description": "Encrypted symfony entity's by verified and standardized libraries",
    "require": {
        "php": ">=7.0",
        "paragonie/halite": "^3.0 || ^4.0",
        "paragonie/sodium_compat": "^1.5"
    },
    "suggest":{
        "defuse/php-encryption": "Alternative for halite for use with older php-versions"
    },
    "autoload": {
        "psr-0": { "Ambta\\DoctrineEncryptBundle": "" }
    },
    "target-dir": "Ambta/DoctrineEncryptBundle",
    "authors": [
        {
            "name": "Michael de Groot",
            "email": "specamps@gmail.com"
        }
    ]
}

{
    "name": "michaeldegroot/doctrine-encrypt-bundle",
    "type": "library",
    "keywords": ["doctrine", "symfony", "halite", "defuse", "encrypt", "decrypt"],
    "license": "MIT",
    "description": "Encrypted symfony entity's by verified and standardized libraries",
    "require": {
        "php": ">=7.0",
        "paragonie/halite": "^4.3",
        "paragonie/sodium_compat": "^1.5"
    },
    "suggest":{
        "defuse/php-encryption": "Alternative for halite for use with older php-versions"
    },
    "autoload": {
        "psr-0": { "Ambta\\DoctrineEncryptBundle": "" }
    },
    "target-dir": "Ambta/DoctrineEncryptBundle",
    "authors": [
        {
            "name": "Michael de Groot",
            "email": "specamps@gmail.com"
        }
    ]
}

Update Halite to the latest version
Update Halite to the latest version

Please don't use any version older than 4.0 anymore.