@@ -28,6 +28,9 @@ jobs:
28 - sudo mount --bind ~/.nix /nix
28 - sudo mount --bind ~/.nix /nix
29 - curl https://nixos.org/nix/install | sh
29 - curl https://nixos.org/nix/install | sh
30 - source ~/.nix-profile/etc/profile.d/nix.sh
30 - source ~/.nix-profile/etc/profile.d/nix.sh
31+ # nixpkgs-unstable not supported
32+ - nix-channel --add https://nixos.org/channels/nixos-17.09 nixpkgs
33+ - nix-channel --update
32 - nix-env -i cabal-install
35 - nix-env -i cabal-install
33 - cabal update
36 - cabal update