diff --git a/default.nix b/default.nix
deleted file mode 100644
index bfa85ab7c..000000000
--- a/default.nix
+++ /dev/null
@@ -1,34 +0,0 @@
-{ mkDerivation, alex, array, base, bytestring, Cabal, cgi
-, containers, directory, exceptions, filepath, happy, haskeline
-, HTF, httpd-shed, HUnit, json, mtl, network, network-uri
-, old-locale, parallel, pretty, process, random, stdenv, terminfo
-, time, time-compat, unix, utf8-string
-}:
-mkDerivation {
-  pname = "gf";
-  version = "3.9";
-  src = ./.;
-  isLibrary = true;
-  isExecutable = true;
-  enableSeparateDataOutput = true;
-  libraryHaskellDepends = [
-    array base bytestring cgi containers directory exceptions filepath
-    haskeline httpd-shed json mtl network network-uri old-locale
-    parallel pretty process random terminfo time time-compat unix
-    utf8-string
-  ];
-  libraryToolDepends = [ alex happy ];
-  executableHaskellDepends = [ base ];
-  testHaskellDepends = [
-    base Cabal directory filepath HTF HUnit process
-  ];
-  doCheck = false;
-  postPatch = ''
-    sed -i "s|\"-s\"|\"\"|" ./Setup.hs
-    sed -i "s|numJobs (bf bi)++||" ./Setup.hs
-  '';
-  preBuild = ''export LD_LIBRARY_PATH=`pwd`/dist/build:$LD_LIBRARY_PATH'';
-  homepage = "http://www.grammaticalframework.org/";
-  description = "Grammatical Framework";
-  license = "unknown";
-}
diff --git a/gf.nix b/gf.nix
deleted file mode 100644
index 2926651f3..000000000
--- a/gf.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-let
-  # We import the package hierarchy from the NIX_PATH.
-  pkgs = import <nixpkgs> {};
-
-  #
-  # The `cgi` package has some out-of-date upper bounds.
-  # Instead of fixing that upstream, we can use the "jailbreak"
-  # function in Nix, which patches away the upper bounds.
-  #
-  # This isn't ideal, but it lets us build the dependency.
-  #
-  jailbreak = pkgs.haskell.lib.doJailbreak;
-  haskellPackages = pkgs.haskellPackages.extend (self: super: {
-    cgi = jailbreak super.cgi;
-  });
-
-in {
-  gf = haskellPackages.callPackage (import ./default.nix) {};
-}