diff --git a/go.nix b/go.nix
index d222715..c0fd0c6 100644
--- a/go.nix
+++ b/go.nix
@@ -1,9 +1,5 @@
-let
-  # Pinned nixpkgs, deterministic. Last updated: 2/12/21.
-  #pkgs = import (fetchTarball("https://github.com/NixOS/nixpkgs/archive/a58a0b5098f0c2a389ee70eb69422a052982d990.tar.gz")) {};
-  # Rolling updates, not deterministic.
-  pkgs = import (fetchTarball "channel:nixpkgs-unstable") { };
-in pkgs.mkShell {
+with (import <nixpkgs> {});
+mkShell {
   buildInputs = with pkgs; [
 	go
 	gcc