diff --git a/pkgs/development/libraries/haskell/yaml/default.nix b/pkgs/development/libraries/haskell/yaml/default.nix
index 76010bb4f868..2b25768aa69d 100644
--- a/pkgs/development/libraries/haskell/yaml/default.nix
+++ b/pkgs/development/libraries/haskell/yaml/default.nix
@@ -1,12 +1,15 @@
-{ cabal, enumerator, transformers }:
+{ cabal, aeson, attoparsec, conduit, text, transformers
+, unorderedContainers, vector
+}:
 
 cabal.mkDerivation (self: {
   pname = "yaml";
-  version = "0.4.1.2";
-  sha256 = "1c7ffs5gkwk0l0vg7amsflra1j8ifd9cvvbqx9jzkqsay8hbr4vb";
-  isLibrary = true;
-  isExecutable = true;
-  buildDepends = [ enumerator transformers ];
+  version = "0.5.1.1";
+  sha256 = "1l3f1rbdajdf9944kwbf90a1wxv00g2jcgjkg54k6c3iqbx956w2";
+  buildDepends = [
+    aeson attoparsec conduit text transformers unorderedContainers
+    vector
+  ];
   meta = {
     homepage = "http://github.com/snoyberg/yaml/";
     description = "Low-level binding to the libyaml C library";