diff --git a/nixos/modules/services/hardware/upower.nix b/nixos/modules/services/hardware/upower.nix
index 2198842a4511..1da47349c077 100644
--- a/nixos/modules/services/hardware/upower.nix
+++ b/nixos/modules/services/hardware/upower.nix
@@ -56,6 +56,32 @@ in
           { Type = "dbus";
             BusName = "org.freedesktop.UPower";
             ExecStart = "@${cfg.package}/libexec/upowerd upowerd";
+            Restart = "on-failure";
+            # Upstream lockdown:
+            # Filesystem lockdown
+            ProtectSystem = "strict";
+            # Needed by keyboard backlight support
+            ProtectKernelTunables = false;
+            ProtectControlGroups = true;
+            ReadWritePaths = "/var/lib/upower";
+            ProtectHome = true;
+            PrivateTmp = true;
+
+            # Network
+            # PrivateNetwork=true would block udev's netlink socket
+            RestrictAddressFamilies = "AF_UNIX AF_NETLINK";
+
+            # Execute Mappings
+            MemoryDenyWriteExecute = true;
+
+            # Modules
+            ProtectKernelModules = true;
+
+            # Real-time
+            RestrictRealtime = true;
+
+            # Privilege escalation
+            NoNewPrivileges = true;
           };
       };
 
diff --git a/pkgs/os-specific/linux/upower/default.nix b/pkgs/os-specific/linux/upower/default.nix
index 629f61bf5b16..6c6e411000ac 100644
--- a/pkgs/os-specific/linux/upower/default.nix
+++ b/pkgs/os-specific/linux/upower/default.nix
@@ -4,11 +4,11 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "upower-0.99.7";
+  name = "upower-0.99.9";
 
   src = fetchurl {
-    url = "https://upower.freedesktop.org/releases/${name}.tar.xz";
-    sha256 = "00d4830yvg84brdhz4kn60lr3r8rn2y8gdbhmhxm78i5mgvc5g14";
+    url = https://gitlab.freedesktop.org/upower/upower/uploads/2282c7c0e53fb31816b824c9d1f547e8/upower-0.99.9.tar.xz;
+    sha256 = "046ix7j7hmb7ycv8v54668kjsrgjhzwxn299c1d87vdnkd38kfh1";
   };
 
   buildInputs =