diff --git a/default.nix b/default.nix
index 48bfa592..eb4fc448 100644
--- a/default.nix
+++ b/default.nix
@@ -1,6 +1,7 @@
 { pkgs ? import <nixpkgs> { }, proj ? pkgs.proj }:
 
 pkgs.buildGoModule rec {
+  buildTime = builtins.currentTime;
   # Try to get git info, fallback to version if .git doesn't exist
   # Note: This runs at eval time, so it captures the version when you build
   gitRevision =