diff --git a/pkgs/development/libraries/haskell/haxr/default.nix b/pkgs/development/libraries/haskell/haxr/default.nix
index 94070a34c185..5caea80d6c8b 100644
--- a/pkgs/development/libraries/haskell/haxr/default.nix
+++ b/pkgs/development/libraries/haskell/haxr/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "haxr";
-  version = "3000.8.4";
-  sha256 = "0cyf1q1ngz0jqxdrvblcy9iw7l478v0rfr7bgkpq0l4brw0ca1pg";
+  version = "3000.8.5";
+  sha256 = "1gfifqc7ldklapnymwd9ss0lll6q87sbg1hc6pa4c9sh275x1rz6";
   buildDepends = [
     blazeBuilder dataenc HaXml HTTP mtl network time utf8String
   ];