diff --git a/pkgs/applications/version-management/git-and-tools/git-annex/default.nix b/pkgs/applications/version-management/git-and-tools/git-annex/default.nix
index 8b1afc2505a1..d71c1dff209e 100644
--- a/pkgs/applications/version-management/git-and-tools/git-annex/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-annex/default.nix
@@ -1,35 +1,35 @@
 { cabal, aeson, async, blazeBuilder, bloomfilter, bup
-, caseInsensitive, clientsession, cryptoApi, curl, dataDefault
-, dataenc, DAV, dbus, dlist, dns, editDistance
+, caseInsensitive, clientsession, cryptoApi, cryptohash, curl
+, dataDefault, dataenc, DAV, dbus, dlist, dns, editDistance
 , extensibleExceptions, feed, filepath, git, gnupg1, gnutls, hamlet
 , hinotify, hS3, hslogger, HTTP, httpConduit, httpTypes, HUnit
 , IfElse, json, lsof, MissingH, MonadCatchIOTransformers
 , monadControl, mtl, network, networkInfo, networkMulticast
-, networkProtocolXmpp, openssh, QuickCheck, random, regexTdfa
+, networkProtocolXmpp, openssh, perl, QuickCheck, random, regexTdfa
 , rsync, SafeSemaphore, SHA, stm, text, time, transformers
 , unixCompat, utf8String, uuid, wai, waiLogger, warp, which
 , xmlConduit, xmlTypes, yesod, yesodCore, yesodDefault, yesodForm
-, yesodStatic, fetchurl, perl
+, yesodStatic
 }:
 
 cabal.mkDerivation (self: {
   pname = "git-annex";
-  version = "4.20130909";
-  sha256 = "0rqbaz4hqfv1nxks62bx282vsvv7vzaxxz1576wk93f659rd06jp";
+  version = "4.20130927";
+  sha256 = "0ycfdwqicmqfj5ygrk11z7cz2b28ccvb45ny8h5i0wr6mg3apj38";
   isLibrary = false;
   isExecutable = true;
   buildDepends = [
     aeson async blazeBuilder bloomfilter caseInsensitive clientsession
-    cryptoApi dataDefault dataenc DAV dbus dlist dns editDistance
-    extensibleExceptions feed filepath gnutls hamlet hinotify hS3
-    hslogger HTTP httpConduit httpTypes HUnit IfElse json MissingH
-    MonadCatchIOTransformers monadControl mtl network networkInfo
-    networkMulticast networkProtocolXmpp QuickCheck random regexTdfa
-    SafeSemaphore SHA stm text time transformers unixCompat utf8String
-    uuid wai waiLogger warp xmlConduit xmlTypes yesod yesodCore
-    yesodDefault yesodForm yesodStatic
+    cryptoApi cryptohash dataDefault dataenc DAV dbus dlist dns
+    editDistance extensibleExceptions feed filepath gnutls hamlet
+    hinotify hS3 hslogger HTTP httpConduit httpTypes HUnit IfElse json
+    MissingH MonadCatchIOTransformers monadControl mtl network
+    networkInfo networkMulticast networkProtocolXmpp QuickCheck random
+    regexTdfa SafeSemaphore SHA stm text time transformers unixCompat
+    utf8String uuid wai waiLogger warp xmlConduit xmlTypes yesod
+    yesodCore yesodDefault yesodForm yesodStatic
   ];
-  buildTools = [ bup curl git gnupg1 lsof openssh rsync which perl ];
+  buildTools = [ bup curl git gnupg1 lsof openssh perl rsync which ];
   configureFlags = "-fS3
                     -fWebDAV
                     -fInotify
@@ -42,18 +42,12 @@ cabal.mkDerivation (self: {
                     -fProduction
                     -fTDFA";
   preConfigure = "patchShebangs .";
-  installPhase = "make PREFIX=$out CABAL=./Setup docs install";
   checkPhase = ''
     export HOME="$NIX_BUILD_TOP/tmp"
     mkdir "$HOME"
     cp dist/build/git-annex/git-annex git-annex
     ./git-annex test
   '';
-  patches = [ (fetchurl { url = "https://github.com/joeyh/git-annex/commit/e4d0b2f180627472b017af8bcfc2ae3fc04d6767.patch";
-                          sha256 = "08lz0zq5y3b3wgi1vbzka7kyihkhzjv02pmq8ab02674yrqrnr5k"; })
-              (fetchurl { url = "https://github.com/joeyh/git-annex/commit/26baae8967d55d0793d0609475a75d265bdd64a3.patch";
-                          sha256 = "0yzgj55jjcqv1975bnj4wafyh4vdzjjn4ajx3wahsyg0gsrm5lpv"; })
-            ];
   meta = {
     homepage = "http://git-annex.branchable.com/";
     description = "manage files with git, without checking their contents into git";