We got a server that only accepts Content-Type: application/json and not Content-Type: application/json; charset=utf-8;

OkHttp keeps generating application/json; charset=utf-8; when we do the following json post

MediaType type = MediaType.parse("application/json");
String json = "{"APIRequests"}";
Request request = new Request.Builder()
.url(apiURL)
.post(RequestBody.create(type, json))
.build();
Response response = client.newCall(request).execute();
String html = response.body().string();

and returns an error. Is there any posibility to overwrite the content-type and not use the generated one from MediaType.parse?

Server it's a public one and i do have no control over it