diff --git a/pkgs/tools/misc/pspg/default.nix b/pkgs/tools/misc/pspg/default.nix
index 814cdb1b3b4..bb0469efa8c 100644
--- a/pkgs/tools/misc/pspg/default.nix
+++ b/pkgs/tools/misc/pspg/default.nix
@@ -1,18 +1,18 @@
-{ stdenv, fetchFromGitHub, gnugrep, ncurses, pkgconfig, readline }:
+{ stdenv, fetchFromGitHub, gnugrep, ncurses, pkgconfig, readline, postgresql }:
 
 stdenv.mkDerivation rec {
   pname = "pspg";
-  version = "2.6.4";
+  version = "2.6.6";
 
   src = fetchFromGitHub {
     owner = "okbob";
     repo = pname;
     rev = version;
-    sha256 = "1sp6ign4phr5j5gg0n345wf2ssihsvqmc8lww8vddi6hiq1l86gp";
+    sha256 = "0l20ysr61y99zxvm8cqsgj7arv4m7h7gqq8lrq65bmh9fxncfpsd";
   };
 
   nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ gnugrep ncurses readline ];
+  buildInputs = [ gnugrep ncurses readline postgresql ];
 
   makeFlags = [ "PREFIX=${placeholder "out"}" ];