diff --git a/flake.nix b/flake.nix
index dd2b267..81ec93b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -94,6 +94,7 @@
         anycast_healthchecker
         flask-excel
         iot-data
+        nixfiles-updated-inputs
         pyexcel-xlsx
         pyexcel-webio
         uptimestatus
diff --git a/pkgs/nixfiles/default.nix b/pkgs/nixfiles/default.nix
new file mode 100644
index 0000000..20353ce
--- /dev/null
+++ b/pkgs/nixfiles/default.nix
@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+
+pkgs.writeShellApplication {
+  name = "nixfiles-updated-inputs.sh";
+  text = builtins.readFile ./nixfiles-updated-inputs.sh;
+  runtimeInputs = [
+    pkgs.git
+  ];
+}
+
diff --git a/pkgs/nixfiles/nixfiles-updated-inputs.sh b/pkgs/nixfiles/nixfiles-updated-inputs.sh
new file mode 100755
index 0000000..b8a2806
--- /dev/null
+++ b/pkgs/nixfiles/nixfiles-updated-inputs.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+NOW="$(date --utc --iso-8601=minutes)"
+
+git fetch origin master
+git checkout updated-inputs
+git merge -s ort -X theirs origin/master -m "Update from master ${NOW}"
+nix flake update
+git add flake.lock
+git commit -m "Flake update ${NOW}" || true
+git push origin updated-inputs
diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index 347a132..b4514a6 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -2,6 +2,7 @@ self: super: {
   anycast_healthchecker = self.python3.pkgs.callPackage ./anycast_healthchecker {};
   flask-excel = self.python3.pkgs.callPackage ./flask-excel {};
   iot-data = self.python3.pkgs.callPackage ./iot-data {};
+  nixfiles-updated-inputs = self.callPackage ./nixfiles {};
   pyexcel-xlsx = self.python3.pkgs.callPackage ./pyexcel-xlsx {};
   pyexcel-webio = self.python3.pkgs.callPackage ./pyexcel-webio {};
   uptimestatus = self.python3.pkgs.callPackage ./uptimestatus {};