diff --git a/pkgs/by-name/hy/hydra/package.nix b/pkgs/by-name/hy/hydra/package.nix
index cb9513095d83..c2de5a00ffa2 100644
--- a/pkgs/by-name/hy/hydra/package.nix
+++ b/pkgs/by-name/hy/hydra/package.nix
@@ -1,7 +1,7 @@
 {
   stdenv,
   lib,
-  nix,
+  nixVersions,
   perlPackages,
   buildEnv,
   makeWrapper,
@@ -50,6 +50,8 @@
 }:
 
 let
+  nix = nixVersions.nix_2_32;
+
   perlDeps = buildEnv {
     name = "hydra-perl-deps";
     paths =
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 77b7a7ae9df6..71c663a2b846 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7305,8 +7305,6 @@ with pkgs;
       hunspell.withDicts
       (_: dicts);
 
-  hydra = callPackage ../by-name/hy/hydra/package.nix { nix = nixVersions.nix_2_32; };
-
   icu-versions = callPackages ../development/libraries/icu { };
   inherit (icu-versions)
     icu60