diff --git a/pkgs/development/libraries/haskell/postgresql-simple/default.nix b/pkgs/development/libraries/haskell/postgresql-simple/default.nix
index ed678ca514c..58b6948dd98 100644
--- a/pkgs/development/libraries/haskell/postgresql-simple/default.nix
+++ b/pkgs/development/libraries/haskell/postgresql-simple/default.nix
@@ -7,8 +7,8 @@
 
 cabal.mkDerivation (self: {
   pname = "postgresql-simple";
-  version = "0.4.2.3";
-  sha256 = "1rg6virvz4nr0m39sr72h23yks5f8ih9nimgacx30zw7xvnx942p";
+  version = "0.4.3.0";
+  sha256 = "16i1qzshbscnbjb4rxz5hl1iaxjmsc21878prj5pp33zbm53dlcm";
   buildDepends = [
     aeson attoparsec blazeBuilder blazeTextual hashable postgresqlLibpq
     scientific text time transformers uuid vector