diff --git a/pkgs/development/libraries/haskell/mvc/default.nix b/pkgs/development/libraries/haskell/mvc/default.nix
index 5373062a6daa..0068beb9bc37 100644
--- a/pkgs/development/libraries/haskell/mvc/default.nix
+++ b/pkgs/development/libraries/haskell/mvc/default.nix
@@ -6,8 +6,8 @@
 
 cabal.mkDerivation (self: {
   pname = "mvc";
-  version = "1.0.2";
-  sha256 = "1hah38hzy0d12b3vk7m6wfzx6hbm79zl4a9mx8bk9825c0g9qy0z";
+  version = "1.0.3";
+  sha256 = "1b1342qxyn2jxb3a5c9bp6ai7iwhbjxgfpbh2kjm7v75444lx78g";
   buildDepends = [
     async contravariant managed mmorph pipes pipesConcurrency
     transformers