{
  "name": "ember-purify",
  "dependencies": {
    "ember": "~2.8.0",
    "ember-cli-shims": "0.1.3",
    "DOMPurify": "^0.8.3"
  }
}

{
  "name": "ember-purify",
  "dependencies": {
    "ember": "~2.9.0",
    "ember-cli-shims": "0.1.3",
    "DOMPurify": "^0.8.3"
  }
}

Update ember to version 2.9
Update ember to version 2.9