diff --git a/pkgs/development/libraries/haskell/yst/default.nix b/pkgs/development/libraries/haskell/yst/default.nix
index ee9bb33cdba9..8b381bd214e4 100644
--- a/pkgs/development/libraries/haskell/yst/default.nix
+++ b/pkgs/development/libraries/haskell/yst/default.nix
@@ -1,17 +1,17 @@
 { cabal, aeson, csv, filepath, HDBC, HDBCSqlite3, HStringTemplate
-, pandoc, parsec, split, text, time, unorderedContainers, xhtml
-, yaml
+, pandoc, parsec, scientific, split, text, time
+, unorderedContainers, xhtml, yaml
 }:
 
 cabal.mkDerivation (self: {
   pname = "yst";
-  version = "0.4.0.1";
-  sha256 = "0j260lvprgsi9qgjwji2cc25k0dzrw94h2527rwghik8baa1ha3r";
+  version = "0.4.1";
+  sha256 = "199awgpxn9131a7ijxvvbc4mi1yasnllbpj77k27brx00j87v3nq";
   isLibrary = false;
   isExecutable = true;
   buildDepends = [
     aeson csv filepath HDBC HDBCSqlite3 HStringTemplate pandoc parsec
-    split text time unorderedContainers xhtml yaml
+    scientific split text time unorderedContainers xhtml yaml
   ];
   meta = {
     homepage = "http://github.com/jgm/yst";