1 files changed, 3 insertions, 3 deletions
diff --git a/pkgs/development/compilers/ghc/head.nix b/pkgs/development/compilers/ghc/head.nix
index 8cecb4d605b5..0deabd0fa98d 100644
--- a/pkgs/development/compilers/ghc/head.nix
+++ b/pkgs/development/compilers/ghc/head.nix
@@ -7,7 +7,7 @@ let
 
   commonBuildInputs = [ ghc perl autoconf automake happy alex python3 ];
 
-  version = "8.1.20161115";
+  version = "8.1.20161224";
 
   commonPreConfigure =  ''
     sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
@@ -19,12 +19,12 @@ let
 in stdenv.mkDerivation (rec {
   inherit version;
   name = "ghc-${version}";
-  rev = "017d11e0a36866b05ace32ece1af11adf652a619";
+  rev = "2689a1692636521777f007861a484e7064b2d696";
 
   src = fetchgit {
     url = "git://git.haskell.org/ghc.git";
     inherit rev;
-    sha256 = "1ryggmz961qd0fl50rkjjvi6g9azwla2vx9310a9nzjaj5x6ib4y";
+    sha256 = "0rk6xy7kgxx849nprq1ji459p88nyy93236g841m5p6mdh7mmrcr";
   };
 
   postPatch = ''