diff --git a/pkgs/development/libraries/libpqxx/default.nix b/pkgs/development/libraries/libpqxx/default.nix
index f88543744da0..ff7b7a1af1f3 100644
--- a/pkgs/development/libraries/libpqxx/default.nix
+++ b/pkgs/development/libraries/libpqxx/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libpqxx";
-  version = "6.3.1";
+  version = "6.3.3";
 
   src = fetchFromGitHub {
     owner = "jtv";
     repo = pname;
     rev = version;
-    sha256 = "15na6iq4mspfa5vgayqzs0wqkqq9nk23d05qwn6xc3gpna2kyqsv";
+    sha256 = "1gfi4ghnhzlkdza2ifvg6b2rk5qn0swq7ykphwmwalb166vj2wlx";
   };
 
   nativeBuildInputs = [ gnused python2 ];