Json изменение каждого y

При помощи python и библиотеки json, я должен поменять каждый position y в коде

{
  "map": "FlatGrass",
  "props": [
    {
      "name": "Container1",
      "uniqueId": 61.12375,
      "position": {
        "x": 0.806536257,
        "y": 0.5050001,
        "z": 7.76004028
      },
      "rotation": {
        "x": -2.83643042E-09,
        "y": 0.9998909,
        "z": -1.01446735E-08,
        "w": 0.0147708561
      },
      "isKinematic": true,
      "instantiationData": null,
      "runtimeData": null
    },
    {
      "name": "Container1",
      "uniqueId": 141.458038,
      "position": {
        "x": 8.790194,
        "y": 0.5050002,
        "z": 7.99596834
      },
      "rotation": {
        "x": -2.83643042E-09,
        "y": 0.9998909,
        "z": -1.01446735E-08,
        "w": 0.0147708561
      },
      "isKinematic": true,
      "instantiationData": null,
      "runtimeData": null
    },
    {
      "name": "Container1",
      "uniqueId": 349.381256,
      "position": {
        "x": 16.7738514,
        "y": 0.505000234,
        "z": 8.231896
      },
      "rotation": {
        "x": -2.83643042E-09,
        "y": 0.9998909,
        "z": -1.01446735E-08,
        "w": 0.0147708561
      },
      "isKinematic": true,
      "instantiationData": null,
      "runtimeData": null
    }
  ]
}