diff --git a/pkgs/development/libraries/haskell/multirec/default.nix b/pkgs/development/libraries/haskell/multirec/default.nix
index 6fbfe6d0fbd..c47237fd163 100644
--- a/pkgs/development/libraries/haskell/multirec/default.nix
+++ b/pkgs/development/libraries/haskell/multirec/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self : {
   pname = "multirec";
-  version = "0.2";
-  sha256 = "66f748245020437ad30dbc25e2decae7d49c6d968c014b316c0961539892083c";
+  version = "0.3";
+  sha256 = "2d6e08131f9a884de685fc8a004de723e06d8884d30cb3f3d12e068e32b7a5d2";
   meta = {
     description = "Generic programming with systems of recursive datatypes";
   };
diff --git a/pkgs/development/libraries/haskell/zipper/default.nix b/pkgs/development/libraries/haskell/zipper/default.nix
index eeb62076503..d8d4bfab450 100644
--- a/pkgs/development/libraries/haskell/zipper/default.nix
+++ b/pkgs/development/libraries/haskell/zipper/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self : {
   pname = "zipper";
-  version = "0.1";
-  sha256 = "aa4d45692be1a54ebe4bd0df9577a09d95692930494103c2ee89dfce7af818eb";
+  version = "0.2";
+  sha256 = "174d2e19d2186511b190bd483f20492751262a6ea88f343fbacf7b40724fa222";
   propagatedBuildInputs = [multirec];
   meta = {
     description = "Generic zipper for systems of recursive datatypes";