diff --git a/pkgs/development/libraries/haskell/lens/default.nix b/pkgs/development/libraries/haskell/lens/default.nix
index eb4e7e258af2..9b769d41ab52 100644
--- a/pkgs/development/libraries/haskell/lens/default.nix
+++ b/pkgs/development/libraries/haskell/lens/default.nix
@@ -12,8 +12,8 @@
 
 cabal.mkDerivation (self: {
   pname = "lens";
-  version = "4.2";
-  sha256 = "0aqhr8akb7wg270jxi1ns3mrpv42cfssi3g2kzyhkjmb39qxpp2w";
+  version = "4.3";
+  sha256 = "0wvsf0vkqjmmgl3p5lxbypn4p126l927ip7l2iisqzwyk87zfqqy";
   buildDepends = [
     aeson attoparsec bifunctors comonad contravariant distributive
     exceptions filepath free hashable mtl parallel primitive