failing elm-package.json

elm-package.json

{
    "version": "1.0.0",
    "summary": "Tic Tac Toe practice project",
    "repository": "https://github.com/amcsi/elm-tic-tac-toe.git",
    "license": "MIT",
    "source-directories": [
        "."
    ],
    "exposed-modules": [],
    "dependencies": {
        "elm-lang/core": "4.0.0 <= v < 5.0.0",
        "elm-lang/html": "1.0.0 <= v < 2.0.0"
    },
    "elm-version": "0.17.0 <= v < 0.18.0"
}