diff --git a/hosts/configuration_desktop.nix b/hosts/configuration_desktop.nix
index f76d6cc..dc89e8b 100644
--- a/hosts/configuration_desktop.nix
+++ b/hosts/configuration_desktop.nix
@@ -190,10 +190,17 @@
   };
 
   system = {                                # NixOS settings
-#    autoUpgrade = {                         # Allow auto update
-#      enable = true;
+    autoUpgrade = {                         # Allow auto update
+      enable = true;
+      flake = "git+https://git.kabtop.de/Kabbone/nixos-config";
+      randomizedDelaySec = "5m";
+      allowReboot = true;
+      reboot.Window = {
+          lower = "02:00";
+          upper = "05:00";
+      };
 #      channel = "https://nixos.org/channels/nixos-unstable";
-#    };
+    };
     stateVersion = "23.05";
   };
 }
diff --git a/hosts/configuration_server.nix b/hosts/configuration_server.nix
index 0dfa739..e989226 100644
--- a/hosts/configuration_server.nix
+++ b/hosts/configuration_server.nix
@@ -138,10 +138,16 @@
   };
 
   system = {                                # NixOS settings
-#    autoUpgrade = {                         # Allow auto update
-#      enable = true;
-#      channel = "https://nixos.org/channels/nixos-unstable";
-#    };
-    stateVersion = "22.05";
+    autoUpgrade = {                         # Allow auto update
+      enable = true;
+      flake = "git+https://git.kabtop.de/Kabbone/nixos-config";
+      randomizedDelaySec = "5m";
+      allowReboot = true;
+      reboot.Window = {
+          lower = "02:00";
+          upper = "05:00";
+      };
+    };
+    stateVersion = "23.05";
   };
 }