47deg/github4s

Hey guys! I am currently working with github4s and i have a problem that my program won't terminate. It is not stuck somewhere but after executing the last line of code it just won't stop. I figured out that it does terminate when i don't execute the code that fetches files from github. The methods that relate to github4s that i use are

private val TIMEOUT_DURATION = Duration(1,duration.SECONDS)

private val httpClient: Client[IO] = {
    val N_THREADS = 5
    val blockingPool = Executors.newFixedThreadPool(N_THREADS)
    val blocker = Blocker.liftExecutorService(blockingPool)
    implicit val cs: ContextShift[IO] = IO.contextShift(global)
    JavaNetClientBuilder[IO](blocker).create
  }

  private val accessToken = sys.env.get("GITHUB_TOKEN")
  private val gh = Github[IO](httpClient, accessToken)

gh.repos.getContents(...)
val response = getContents
        .unsafeRunTimed(TIMEOUT_DURATION)
        .getOrElse(throw new IOException(s"Unable to fetch content of: $path"))

Does anybody know if there might be some running thread problem here ? Thx.