From c9b2117da59ee369e81235b4a19bb66125f51354 Mon Sep 17 00:00:00 2001
From: Wolfgang Walther <walther@technowledgy.de>
Date: Fri, 15 May 2026 09:27:15 +0200
Subject: [PATCH] libpq: 18.2 -> 18.4

Release Notes:
https://www.postgresql.org/about/news/postgresql-184-1710-1614-1518-and-1423-released-3297/

Security: CVE-2026-6477
---
 pkgs/servers/sql/postgresql/libpq.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkgs/servers/sql/postgresql/libpq.nix b/pkgs/servers/sql/postgresql/libpq.nix
index 2170f5cb2782..5ea0c5113225 100644
--- a/pkgs/servers/sql/postgresql/libpq.nix
+++ b/pkgs/servers/sql/postgresql/libpq.nix
@@ -40,14 +40,14 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "libpq";
-  version = "18.2";
+  version = "18.4";
 
   src = fetchFromGitHub {
     owner = "postgres";
     repo = "postgres";
     # rev, not tag, on purpose: see generic.nix.
-    rev = "refs/tags/REL_18_2";
-    hash = "sha256-cvBXxA7/kEwDGxFv/YoZCIh17jzUujrCtfKAmtSxKTw=";
+    rev = "refs/tags/REL_18_4";
+    hash = "sha256-Ac/Dqcj8vjcW3my5vsnKaMiQqTq/HPtUzckJ3SMyrfA=";
   };
 
   __structuredAttrs = true;