diff --git a/.travis.yml b/.travis.yml

index 0b5f8f2988f28d65386dc0b426a39df3eba304c1..d45da7f8f7b0a99c0b8d04fe70119234549d4103 100644

--- a/.travis.yml

+++ b/.travis.yml

@@ -11,7 +11,6 @@ matrix:

include:

 - env: NIX_CHANNEL=https://nixos.org/channels/nixpkgs-unstable

 - env: NIX_CHANNEL=https://nixos.org/channels/nixos-unstable

• • env: NIX_CHANNEL=https://nixos.org/channels/nixos-19.09

install:

• nix --version

diff --git a/pkgs/mbtileserver/default.nix b/pkgs/mbtileserver/default.nix

index cc4c69aebfe8c224c5abc0d01e5ebd0e0a28c112..ddf74033042febf9a657b6fc5d0664b53a627ee5 100644

--- a/pkgs/mbtileserver/default.nix

+++ b/pkgs/mbtileserver/default.nix

@@ -5,7 +5,7 @@ pname = "mbtileserver";

version = lib.substring 0 7 src.rev;

src = mbtileserver;

• modSha256 = "0pa9dni3ihxnqpvarxmgvlm9wlgalnx97bdhy8s36as1rdzbgl16";

• modSha256 = "147rpf3dd0md7pm7yfniy139kv3fb3kmyp82slpjrf8xdqgbrpk0";

meta = with lib; {

 description = mbtileserver.description;