diff --git a/pkgs/development/libraries/haskell/haxr/default.nix b/pkgs/development/libraries/haskell/haxr/default.nix
index 3e14485ea1a..12f2b2f84f3 100644
--- a/pkgs/development/libraries/haskell/haxr/default.nix
+++ b/pkgs/development/libraries/haskell/haxr/default.nix
@@ -9,6 +9,9 @@ cabal.mkDerivation (self: {
   buildDepends = [
     blazeBuilder dataenc HaXml HTTP mtl network time utf8String
   ];
+  patchPhase = ''
+    sed -i haxr.cabal -e 's|HaXml == 1.22.\*|HaXml|'
+  '';
   meta = {
     homepage = "http://www.haskell.org/haskellwiki/HaXR";
     description = "XML-RPC client and server library";