diff --git a/pkgs/development/libraries/haskell/bytestring-lexing/default.nix b/pkgs/development/libraries/haskell/bytestring-lexing/default.nix
index 8c4f2af654e1..9a013c9f2453 100644
--- a/pkgs/development/libraries/haskell/bytestring-lexing/default.nix
+++ b/pkgs/development/libraries/haskell/bytestring-lexing/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "bytestring-lexing";
-  version = "0.4.3.1";
-  sha256 = "1n0sk1xqwkj4whp0gav7hwr33xqmwl3ylqfnqix8wbwz6xpg9ygn";
+  version = "0.4.3.2";
+  sha256 = "09ymg1n21668wn4harxg0cqlz98fz990bangpy99w2z7d6cwbc05";
   buildTools = [ alex ];
   meta = {
     homepage = "http://code.haskell.org/~wren/";