diff --git a/flake.nix b/flake.nix
index f78d816..97f37c4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -149,7 +149,8 @@
             crossOnlyPackages =
               {
                 "s390x-linux" = {
-                  inherit (pkgs) attic-client nix;
+                  inherit (pkgs) attic-client;
+                  nix = pkgs.nixVersions.nix_2_28;
                 };
               }
               .${target} or { };