@@ -60,7 +60,7 @@ Add a `default.nix`:
6060```nix
6161let
6262 haskellNix = import (builtins.fetchTarball https://github.com/input-output-hk/haskell.nix/archive/master.tar.gz) {};
63− nixpkgsSrc = haskellNix.sources.nixpkgs-1909;
63+ nixpkgsSrc = haskellNix.sources.nixpkgs-2003;
6464 nixpkgsArgs = haskellNix.nixpkgsArgs;
6565in
6666{ pkgs ? import nixpkgsSrc nixpkgsArgs