diff --git a/pkgs/development/libraries/haskell/network-transport/default.nix b/pkgs/development/libraries/haskell/network-transport/default.nix
index c59a3fbb235e..410e6076f291 100644
--- a/pkgs/development/libraries/haskell/network-transport/default.nix
+++ b/pkgs/development/libraries/haskell/network-transport/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "network-transport";
-  version = "0.4.0.0";
-  sha256 = "1485w86wzszlg4dvl0fkr7wa47snvpw825llrvdgrrkcxamhsmrz";
+  version = "0.4.1.0";
+  sha256 = "0xn879ngrbnm71i1wsbxxiih22sdb6csy6aip6fgqyafqlpc1c93";
   buildDepends = [ binary hashable transformers ];
   meta = {
     homepage = "http://haskell-distributed.github.com";