diff --git a/pkgs/development/libraries/haskell/network-metrics/default.nix b/pkgs/development/libraries/haskell/network-metrics/default.nix
index 024192a06a8..c9df88a41c9 100644
--- a/pkgs/development/libraries/haskell/network-metrics/default.nix
+++ b/pkgs/development/libraries/haskell/network-metrics/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "network-metrics";
-  version = "0.3.2";
-  sha256 = "14yf9di909443gkgaw7n262453d60pp9mw8vncmd6q7pywhdz9hh";
+  version = "0.4";
+  sha256 = "0dvrjf84pdm42pxwc7fm4gvswc5nzmdsq7cr7ab8jyzvjqb8684c";
   buildDepends = [ binary dataDefault network random time ];
   meta = {
     homepage = "http://github.com/brendanhay/network-metrics";