diff --git a/pkgs/development/libraries/haskell/hxt-regex-xmlschema/default.nix b/pkgs/development/libraries/haskell/hxt-regex-xmlschema/default.nix
index fb2e4a2c1e56..879ff0affdc7 100644
--- a/pkgs/development/libraries/haskell/hxt-regex-xmlschema/default.nix
+++ b/pkgs/development/libraries/haskell/hxt-regex-xmlschema/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "hxt-regex-xmlschema";
-  version = "9.0.4";
-  sha256 = "0jl89p9sb76zb6j2b9ssxaai6jq3jbnnpv4v05wfvlmk8apckwgf";
+  version = "9.1.0";
+  sha256 = "0l97rkrvl6pmxdgiwbwh2s3l00lyaihrhsffhh69639bgs67zgwr";
   buildDepends = [ hxtCharproperties parsec ];
   meta = {
     homepage = "http://www.haskell.org/haskellwiki/Regular_expressions_for_XML_Schema";