405 Error on Coveralls

I cannot seem to be able to report coverage on my project anymore:

```
Error: "Failed to report coverage! Error: Coveralls send failed. unrecognized API error: <html>\r\n<head><title>405 Not Allowed</title></head>\r\n<body>\r\n<center><h1>405 Not Allowed</h1></center>\r\n<hr><center>nginx</center>\r\n</body>\r\n</html>\r\n"
```