Upgrading to 5.4 and now getting 'Your requirements could not be resolved to an installable set of packages.'

Changed composer.json to contain this:

"laravel/framework": "5.4.*",

Now I'm getting this (looks like a problem with laravelcollective/html and I can't find any mention of a new laravelcollective package version in the upgrade guide):

Problem 1
    - Conclusion: don't install laravel/framework v5.4.3
    - Conclusion: don't install laravel/framework v5.4.2
    - Conclusion: don't install laravel/framework v5.4.1
    - laravelcollective/html v5.3.0 requires illuminate/view 5.3.* -> satisfiable by laravel/framework[v5.3.29], illuminate/view[v5.3.0, v5.3.16, v5.3.23, v5.3.4].
    - laravelcollective/html v5.3.0 requires illuminate/view 5.3.* -> satisfiable by laravel/framework[v5.3.29], illuminate/view[v5.3.0, v5.3.16, v5.3.23, v5.3.4].
    - Can only install one of: laravel/framework[v5.4.0, v5.3.29].
    - don't install illuminate/view v5.3.0|don't install laravel/framework v5.4.0
    - don't install illuminate/view v5.3.16|don't install laravel/framework v5.4.0
    - don't install illuminate/view v5.3.23|don't install laravel/framework v5.4.0
    - don't install illuminate/view v5.3.4|don't install laravel/framework v5.4.0
    - Installation request for laravel/framework 5.4.* -> satisfiable by laravel/framework[v5.4.0, v5.4.1, v5.4.2, v5.4.3].
    - Installation request for laravelcollective/html ^5.3.0 -> satisfiable by laravelcollective/html[v5.3.0].

The laravelcollective line on composer.json looks like this, as per the documentation:

"laravelcollective/html": "^5.3.0",

That's the only change I've made. The complete composer.json file looks like this:

{
    "name": "Blah",
    "description": "The Laravel Framework Boilerplate Project.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": ">=5.6.4",
        "laravel/framework": "5.4.*",
        "laravelcollective/html": "^5.3.0",
        "laravel/socialite": "^2.0",
        "creativeorange/gravatar": "~1.0",
        "davejamesmiller/laravel-breadcrumbs": "^3.0",
        "hieu-le/active": "~2.0",
        "arcanedev/log-viewer": "~4.0",
        "arcanedev/no-captcha": "~3.0",
        "yajra/laravel-datatables-oracle": "~6.0",
        "gazatem/glog": "dev-master"
    },
    "require-dev": {
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "0.9.*",
        "phpunit/phpunit": "~5.0",
        "symfony/css-selector": "3.1.*",
        "symfony/dom-crawler": "3.1.*",
        "barryvdh/laravel-debugbar": "^2.1"
    },
    "autoload": {
        "classmap": [
            "database"
        ],
        "psr-4": {
            "App\\": "app/"
        },
        "files": [
            "app/helpers.php"
        ]
    },
    "autoload-dev": {
        "classmap": [
            "tests/TestCase.php"
        ]
    },
    "scripts": {
        "post-root-package-install": [
            "php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "php artisan key:generate"
        ],
        "post-install-cmd": [
            "Illuminate\\Foundation\\ComposerScripts::postInstall",
            "php artisan optimize"
        ],
        "post-update-cmd": [
            "Illuminate\\Foundation\\ComposerScripts::postUpdate",
            "php artisan optimize"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true
    }
}