diff --git a/pkgs/servers/x11/xorg/default.nix b/pkgs/servers/x11/xorg/default.nix
index 2f5cb4100570..83a61ee2529d 100644
--- a/pkgs/servers/x11/xorg/default.nix
+++ b/pkgs/servers/x11/xorg/default.nix
@@ -1183,11 +1183,11 @@ self: with self; {
   # THIS IS A GENERATED FILE.  DO NOT EDIT!
   libXau = callPackage ({ stdenv, pkg-config, fetchurl, xorgproto, testers }: stdenv.mkDerivation (finalAttrs: {
     pname = "libXau";
-    version = "1.0.11";
+    version = "1.0.12";
     builder = ./builder.sh;
     src = fetchurl {
-      url = "mirror://xorg/individual/lib/libXau-1.0.11.tar.xz";
-      sha256 = "1sxv56rql3vsb14za0hgr07mipgvvcw48910srmky32pyn135ypk";
+      url = "mirror://xorg/individual/lib/libXau-1.0.12.tar.xz";
+      sha256 = "1yy0gx3psxyjcj284xhh44labav7b5zs7gcrks9xi6nklggy9l3l";
     };
     hardeningDisable = [ "bindnow" "relro" ];
     strictDeps = true;
diff --git a/pkgs/servers/x11/xorg/tarballs.list b/pkgs/servers/x11/xorg/tarballs.list
index f3e8e1542b96..0c7378869811 100644
--- a/pkgs/servers/x11/xorg/tarballs.list
+++ b/pkgs/servers/x11/xorg/tarballs.list
@@ -173,7 +173,7 @@ mirror://xorg/individual/lib/libpciaccess-0.18.1.tar.xz
 mirror://xorg/individual/lib/libSM-1.2.5.tar.xz
 mirror://xorg/individual/lib/libWindowsWM-1.0.1.tar.bz2
 mirror://xorg/individual/lib/libX11-1.8.10.tar.xz
-mirror://xorg/individual/lib/libXau-1.0.11.tar.xz
+mirror://xorg/individual/lib/libXau-1.0.12.tar.xz
 mirror://xorg/individual/lib/libXaw-1.0.16.tar.xz
 mirror://xorg/individual/lib/libxcb-1.17.0.tar.xz
 mirror://xorg/individual/lib/libXcomposite-0.4.6.tar.xz