gitness: Drone is throwing up 500 on tag hooks for Gogs

Drone is throwing up an 500 error whenever a tag hook is triggered by gogs.

versions

Drone 0.4.0
Gogs 0.8.10

tag payload

{
  "secret": "hidden",
  "ref": "v1.2.6",
  "ref_type": "tag",
  "repository": {
    "id": 1,
    "name": "repository",
    "url": "https://gogs.company.com/project/repository",
    "ssh_url": "git@gogs.company.com:project/repository.git",
    "clone_url": "https://gogs.company.com/project/repository.git",
    "description": "",
    "website": "",
    "watchers": 13,
    "owner": {
      "name": "project",
      "email": "",
      "username": "project"
    },
    "private": true
  },
  "sender": {
    "login": "jose.moreira",
    "id": 1,
    "avatar_url": "https://gogs.company.com//avatar/6b2f1bb07eb368151c88af45764967df"
  }
}

branch payload

{
  "secret": "hidden",
  "ref": "refs/heads/master",
  "before": "4d160779370bb6c974adb558b68d3703a1fa7059",
  "after": "a42e1bb384efffcc0d994a9c0e451e20d1ee61c9",
  "compare_url": "https://gogs.company.com/project/repository/compare/4d160779370bb6c974adb558b68d3703a1fa7059...a42e1bb384efffcc0d994a9c0e451e20d1ee61c9",
  "commits": [
    {
      "id": "a42e1bb384efffcc0d994a9c0e451e20d1ee61c9",
      "message": "Drone: fix yml\n",
      "url": "https://gogs.company.com/project/repository/commit/a42e1bb384efffcc0d994a9c0e451e20d1ee61c9",
      "author": {
        "name": "José Moreira",
        "email": "hidden",
        "username": "jose.moreira"
      }
    }
  ],
  "repository": {
    "id": 1,
    "name": "repository",
    "url": "https://gogs.company.com/project/repository",
    "ssh_url": "git@gogs.company.com:project/repository.git",
    "clone_url": "https://gogs.company.com/project/repository.git",
    "description": "",
    "website": "",
    "watchers": 13,
    "owner": {
      "name": "project",
      "email": "",
      "username": "project"
    },
    "private": true
  },
  "pusher": {
    "name": "jose.moreira",
    "email": "hidden",
    "username": "jose.moreira"
  },
  "sender": {
    "login": "jose.moreira",
    "id": 1,
    "avatar_url": "https://gogs.company.com//avatar/6b2f1bb07eb368151c88af45764967df"
  }
}

@bradrydzewski any idea why?