anchor.diff:      "https://unbound.net/downloads/unbound-${version}.tar.gz"
     ];
   
  -  version = "1.6.1";
  +  version = "1.6.2";
   in
   stdenv.mkDerivation rec {
     name = "unbound-${version}";
   
     src = fetchurl {
       urls = tarballUrls version;
  -    multihash = "QmXibvY97if5jMiYyzaEM6WJHMCbHQnuz2N1XbQZjjxheW";
  +    multihash = "QmcaySys78XSJmY9TC4VoUv3KcxuJxSBsUqKacK17GucbD";
       hashOutput = false;
  -    sha256 = "42df63f743c0fe8424aeafcf003ad4b880b46c14149d696057313f5c1ef51400";
  +    sha256 = "1a323d72c32180b7141c9e6ebf199fc68a0208dfebad4640cd2c4c27235e3b9c";
     };
   
     buildInputs = [
       expat
       fstrm
       libevent
  +    libsodium
       openssl
       protobuf-c
  +    systemd_lib
     ];
   
     configureFlags = [
  
positive.code:     "--sysconfdir=/etc"
      "--enable-pie"
      "--enable-relro-now"
      "--enable-dnstap"
      "--with-dnstap-socket-path=/run/dnstap.sock"
    ];
  
    preInstall = ''
  
negative.code: , expat
  , fstrm
  , libevent
  , libsodium
  , openssl
  , protobuf-c
  , systemd_lib
  }:
  
  let
  