diff --git a/pkgs/development/libraries/haskell/ixset/default.nix b/pkgs/development/libraries/haskell/ixset/default.nix
index eb118834e34d..24bbde7098d4 100644
--- a/pkgs/development/libraries/haskell/ixset/default.nix
+++ b/pkgs/development/libraries/haskell/ixset/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "ixset";
-  version = "1.0.5";
-  sha256 = "1hznn7f8f13x5125n76dchayi16z72050qbwifnkrca54nf9q2ns";
+  version = "1.0.6";
+  sha256 = "097f9fkm9a2n67bzagr9h2v7acdn8h1ayv9c83n7nv1dh157bpyv";
   buildDepends = [ safecopy syb sybWithClass ];
   meta = {
     homepage = "http://happstack.com";