diff --git a/pkgs/development/libraries/haskell/semigroupoids/default.nix b/pkgs/development/libraries/haskell/semigroupoids/default.nix
index 45e2adb35fd..455396564ec 100644
--- a/pkgs/development/libraries/haskell/semigroupoids/default.nix
+++ b/pkgs/development/libraries/haskell/semigroupoids/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "semigroupoids";
-  version = "4.0.2";
-  sha256 = "07xzqqdra2d5jr4wclislj1lhbb1nlry65m0y42hdxsjf3n05931";
+  version = "4.0.2.1";
+  sha256 = "00ga4spbnvwnk7j4h7zjw3bkd98glaganhcwq947ffadc0nansb1";
   buildDepends = [
     comonad contravariant distributive semigroups transformers
   ];