diff --git a/flake.lock b/flake.lock
index 63ea6b3..cbc8415 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689444953,
-        "narHash": "sha256-0o56bfb2LC38wrinPdCGLDScd77LVcr7CrH1zK7qvDg=",
+        "lastModified": 1703013332,
+        "narHash": "sha256-+tFNwMvlXLbJZXiMHqYq77z/RfmpfpiI3yjL6o/Zo9M=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8acef304efe70152463a6399f73e636bcc363813",
+        "rev": "54aac082a4d9bb5bbc5c4e899603abfb76a3f6d6",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 099840c..31f46ec 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,5 +1,7 @@
 {
-  inputs.nixpkgs.url = "nixpkgs/nixos-unstable";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    # This maps to https://github.com/NixOS/nixpkgs/tree/nixos-unstable
+    # The `url` option is the pattern of `github:USER_OR_ORG/REPO/BRANCH`
 
   outputs = {
     self,
@@ -32,7 +34,9 @@
         packwiz = pkgs.callPackage ./nix {
           version = substring 0 8 self.rev or "dirty";
           vendorSha256 = readFile ./nix/vendor-sha256;
-          buildGoModule = pkgs.buildGo119Module;
+          buildGoModule = pkgs.buildGoModule;
+            # As of writing, `pkgs.buildGoModule` is aliased to
+            # `pkgs.buildGo121Module` in Nixpkgs.
         };
         # Build packwiz by default when no package name is specified
         default = packwiz;
diff --git a/nix/prefetcher.nix b/nix/prefetcher.nix
index 5362219..18ee3f6 100644
--- a/nix/prefetcher.nix
+++ b/nix/prefetcher.nix
@@ -3,13 +3,12 @@
   pkgs ? import <nixpkgs> {},
 }:
 pkgs.callPackage (import ./.) {
-  ## Keeping `buildGoModule` commented out in case it's needed in the future.
-  ## As of writing, `buildGo121Module` is currently used as the default for
-  ## `buildGoModule` in nixpkgs. `buildGo118Module` seems deprecated and
-  ## entirely removed from nixpkgs, so manually setting that is likely to cause
-  ## issues in the future.
 
-  # buildGoModule = pkgs.buildGo118Module;
+  buildGoModule = pkgs.buildGoModule;
+    ## As of writing, `pkgs.buildGoModule` is aliased to
+    ## `pkgs.buildGo121Module` in Nixpkgs.
+    ## `buildGoModule` is set as `pkgs.buildGoModule` to try and work around
+    ## `vendorHash` issues in the future.
   vendorSha256 = sha256;
 }
 // {