diff --git a/home-manager/services/brew-upgrader/default.nix b/home-manager/services/brew-upgrader/default.nix
new file mode 100644
index 000000000..c36902163
--- /dev/null
+++ b/home-manager/services/brew-upgrader/default.nix
@@ -0,0 +1,17 @@
+{ pkgs, ... }:
+{
+  launchd.agents.brew-upgrader = pkgs.lib.mkIf pkgs.stdenv.isDarwin {
+    enable = true;
+    config = {
+      ProgramArguments = [
+        "${pkgs.bash}/bin/bash"
+        "${./upgrade.sh}"
+      ];
+      RunAtLoad = true;
+      KeepAlive = true;
+      StartInterval = 10800;
+      StandardOutPath = "/tmp/brew-upgrader.log";
+      StandardErrorPath = "/tmp/brew-upgrader.error.log";
+    };
+  };
+}
diff --git a/home-manager/services/brew-upgrader/upgrade.sh b/home-manager/services/brew-upgrader/upgrade.sh
new file mode 100755
index 000000000..da7e83d93
--- /dev/null
+++ b/home-manager/services/brew-upgrader/upgrade.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+brew upgrade
diff --git a/home-manager/services/default.nix b/home-manager/services/default.nix
index 9dddf21ec..492703b0f 100644
--- a/home-manager/services/default.nix
+++ b/home-manager/services/default.nix
@@ -4,8 +4,10 @@ let
   dotfilesUpdater = import ./dotfiles-updater { inherit pkgs; };
   neversslKeepalive = import ./neverssl-keepalive { inherit pkgs; };
   # ollama = import ./ollama { inherit pkgs; };  # FIXME: ollama 0.12.11 has build issues with UI assets, uncomment when fixed
+  brewUpgrader = import ./brew-upgrader { inherit pkgs; };
 in
 [
+  brewUpgrader
   codeSyncer
   dotfilesUpdater
   neversslKeepalive