Commit d7b6fee8cc2 for nodejs

commit d7b6fee8cc2d111e5578da396f23f5b1f3f473ad
Author: Node.js GitHub Bot <github-bot@iojs.org>
Date:   Mon Oct 19 21:15:33 2026 -0400

    tools: update nixpkgs-unstable to f20cd90e28fe0403873f473b29e42662cd8

    PR-URL: https://github.com/nodejs/node/pull/66819
    Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
    Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

diff --git a/tools/nix/pkgs-26.05.nix b/tools/nix/pkgs-26.05.nix
index c60981ade21..cc752d342dd 100644
--- a/tools/nix/pkgs-26.05.nix
+++ b/tools/nix/pkgs-26.05.nix
@@ -1,10 +1,10 @@
 arg:
 let
   repo = "https://github.com/NixOS/nixpkgs";
-  rev = "240fddad86d7a0520319f21d8be1b43db426b18d";
+  rev = "42966a9c76f2cdb95b108c9fac939a27b0b8f2c5";
   nixpkgs = import (builtins.fetchTarball {
     url = "${repo}/archive/${rev}.tar.gz";
-    sha256 = "0ycjk076iak360rxmgpma4wajqdffncidgrfa11kvdhplaxr4zn8";
+    sha256 = "0i0n2r8hsskzzkhkjgp61r5q94wj644i2jdw733gn4f5ffr61qvk";
   }) arg;
 in
 # Unstable channel no longer supports Intel architecture for macOS. We can use the 26.05 channel
diff --git a/tools/nix/pkgs.nix b/tools/nix/pkgs.nix
index 52ef60358b5..21a8035ce43 100644
--- a/tools/nix/pkgs.nix
+++ b/tools/nix/pkgs.nix
@@ -1,10 +1,10 @@
 arg:
 let
   repo = "https://github.com/NixOS/nixpkgs";
-  rev = "8edc0c72e3a38faf5434e40d1f19431125fe4b30";
+  rev = "f20cd90e28fe0403873f473b29e42662cd86e8c4";
   nixpkgs = import (builtins.fetchTarball {
     url = "${repo}/archive/${rev}.tar.gz";
-    sha256 = "0cwxl7z1x0ad9z8lcljl390y9lk73ql4fvx5lysy4s9c6723p8xn";
+    sha256 = "1vv6crfchmhjk5j61zgajggc3cgkalak2rvng07g41cvlcf6ldhj";
   }) arg;
 in
 # Unstable channel no longer supports Intel architecture for macOS. We can use the 26.05 channel