diff --git a/pkgs/development/libraries/haskell/dns/default.nix b/pkgs/development/libraries/haskell/dns/default.nix
index 60a32ea092f..5a1dc0cc871 100644
--- a/pkgs/development/libraries/haskell/dns/default.nix
+++ b/pkgs/development/libraries/haskell/dns/default.nix
@@ -1,20 +1,20 @@
 # This file was auto-generated by cabal2nix. Please do NOT edit manually!
 
 { cabal, attoparsec, binary, blazeBuilder, conduit, conduitExtra
-, doctest, hspec, iproute, mtl, network, random, resourcet
+, doctest, hspec, iproute, mtl, network, random, resourcet, word8
 }:
 
 cabal.mkDerivation (self: {
   pname = "dns";
-  version = "1.4.1";
-  sha256 = "0q5ib797p0ay8lrlywaqyg736qh67mfdqwc53c1qhr5xrbcyvdir";
+  version = "1.4.2";
+  sha256 = "1xfvc5amiqafb2z37jf47k5h8i2f4ygvck68nppi5fkwii5w74hr";
   buildDepends = [
     attoparsec binary blazeBuilder conduit conduitExtra iproute mtl
     network random resourcet
   ];
   testDepends = [
     attoparsec binary blazeBuilder conduit conduitExtra doctest hspec
-    iproute mtl network random resourcet
+    iproute mtl network random resourcet word8
   ];
   testTarget = "spec";
   meta = {