diff --git a/pkgs/development/libraries/haskell/digest/default.nix b/pkgs/development/libraries/haskell/digest/default.nix
new file mode 100644
index 00000000000..c2423be8e53
--- /dev/null
+++ b/pkgs/development/libraries/haskell/digest/default.nix
@@ -0,0 +1,12 @@
+{cabal, zlib}:
+
+cabal.mkDerivation (self : {
+  pname = "digest";
+  version = "0.0.0.5";
+  sha256 = "dddfcdd325dc7d4fb1ce4772c1f5618cb20504b28dba8a78682011cba1341efd";
+  propagatedBuildInputs = [zlib];
+  meta = {
+    description = "Various cryptographic hashes for bytestrings: CRC32 and Adler32 for now";
+  };
+})  
+
diff --git a/pkgs/development/libraries/haskell/pandoc/default.nix b/pkgs/development/libraries/haskell/pandoc/default.nix
new file mode 100644
index 00000000000..1e7ab185bd7
--- /dev/null
+++ b/pkgs/development/libraries/haskell/pandoc/default.nix
@@ -0,0 +1,12 @@
+{cabal, mtl, network, parsec, utf8String, xhtml, zipArchive}:
+
+cabal.mkDerivation (self : {
+  pname = "pandoc";
+  version = "1.2";
+  sha256 = "e922c8f4765a8d105abf30dbe21a73961357929cd2fb8dfd323f0f62ca0723b4";
+  propagatedBuildInputs = [mtl network parsec utf8String xhtml zipArchive];
+  meta = {
+    description = "Conversion between markup formats";
+  };
+})  
+
diff --git a/pkgs/development/libraries/haskell/zip-archive/default.nix b/pkgs/development/libraries/haskell/zip-archive/default.nix
new file mode 100644
index 00000000000..11a7675c0d2
--- /dev/null
+++ b/pkgs/development/libraries/haskell/zip-archive/default.nix
@@ -0,0 +1,12 @@
+{cabal, binary, mtl, utf8String, zlib, digest}:
+
+cabal.mkDerivation (self : {
+  pname = "zip-archive";
+  version = "0.1.1.3";
+  sha256 = "2caa3e6020c394c740b942685306c71e91bebf6e499627dc20fdf0ac7925a57a";
+  propagatedBuildInputs = [binary mtl utf8String zlib digest];
+  meta = {
+    description = "Library for creating and modifying zip archives";
+  };
+})  
+
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 0a2d33e8d93..6c65fdd8d8a 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -55,6 +55,11 @@ rec {
     inherit cabal;
   };
 
+  digest = import ../development/libraries/haskell/digest {
+    inherit cabal;
+    inherit (pkgs) zlib;
+  };
+
   dotgen = import ../development/libraries/haskell/dotgen {
     inherit cabal;
   };
@@ -213,6 +218,10 @@ rec {
     inherit (pkgs.xlibs) libX11;
   };
 
+  pandoc = import ../development/libraries/haskell/pandoc {
+    inherit cabal mtl network parsec utf8String xhtml zipArchive;
+  };
+
   parallel = import ../development/libraries/haskell/parallel {
     inherit cabal;
   };
@@ -370,6 +379,10 @@ rec {
     inherit cabal;
   };
 
+  zipArchive = import ../development/libraries/haskell/zip-archive {
+    inherit cabal binary mtl utf8String zlib digest;
+  };
+
   zipper = import ../development/libraries/haskell/zipper {
     inherit cabal multirec;
   };