diff --git a/pkgs/by-name/hy/hydra/package.nix b/pkgs/by-name/hy/hydra/package.nix
index 3feeeed41fb1..1e5c1d91ab9b 100644
--- a/pkgs/by-name/hy/hydra/package.nix
+++ b/pkgs/by-name/hy/hydra/package.nix
@@ -131,6 +131,7 @@ in
 stdenv.mkDerivation (finalAttrs: {
   pname = "hydra";
   version = "0-unstable-2025-06-15";
+  # nixpkgs-update: no auto update
 
   src = fetchFromGitHub {
     owner = "NixOS";