diff --git a/pkgs/development/libraries/haskell/web-routes-boomerang/default.nix b/pkgs/development/libraries/haskell/web-routes-boomerang/default.nix
index 602d95f45df5..ee6c19b0d930 100644
--- a/pkgs/development/libraries/haskell/web-routes-boomerang/default.nix
+++ b/pkgs/development/libraries/haskell/web-routes-boomerang/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "web-routes-boomerang";
-  version = "0.28.0";
-  sha256 = "1xp8p0fkwirrpssb9lnxl7fmlmrql28r2ywaa99gw9cdqxifzbbl";
+  version = "0.28.1";
+  sha256 = "1a655d73fr7b9k033wyqgc8waq7ii3s5rh0w3nkb1phxl9ldg0pi";
   buildDepends = [ boomerang mtl parsec text webRoutes ];
   meta = {
     description = "Library for maintaining correctness and composability of URLs within an application";