Am getting this error when trying to deploy an old project

Question

"nix-env -if .nixpacks/nixpkgs-5148520bfab61f99fd25fb9ff7bfbb50dad3c9db.nix && nix-collect-garbage -d" did not complete successfully: exit code: 1
unpacking 'https://github.com/NixOS/nixpkgs/archive/5148520bfab61f99fd25fb9ff7bfbb50dad3c9db.tar.gz' into the Git cache...
installing '5148520bfab61f99fd25fb9ff7bfbb50dad3c9db-env'
error:
       … while calling the 'derivationStrict' builtin
         at :37:12:
           36|
           37|   strict = derivationStrict drvAttrs;
             |            ^
           38|
       … while evaluating derivation '5148520bfab61f99fd25fb9ff7bfbb50dad3c9db-env'
         whose name attribute is located at /nix/store/lgcjj6s23v2203zyihsd0j26wh1saj0c-source/pkgs/stdenv/generic/make-derivation.nix:300:7
       … while evaluating attribute 'passAsFile' of derivation '5148520bfab61f99fd25fb9ff7bfbb50dad3c9db-env'
         at /nix/store/lgcjj6s23v2203zyihsd0j26wh1saj0c-source/pkgs/build-support/trivial-builders/default.nix:88:7:
           87|       inherit buildCommand name;
           88|       passAsFile = [ "buildCommand" ]
             |       ^
           89|         ++ (derivationArgs.passAsFile or []);
       (stack trace truncated; use '--show-trace' to show the full, detailed trace)
       error: attribute 'dev' missing
       at /app/.nixpacks/nixpkgs-5148520bfab61f99fd25fb9ff7bfbb50dad3c9db.nix:19:13:
           18|         '')
           19|         gcc postgresql_16.dev python39
             |             ^
           20|       ];
       Did you mean doc?
How do I resolve this