diff --git a/modules/nixos/server/automatic-upgrade.nix b/modules/nixos/server/automatic-upgrade.nix
index f178a10..d449424 100644
--- a/modules/nixos/server/automatic-upgrade.nix
+++ b/modules/nixos/server/automatic-upgrade.nix
@@ -5,5 +5,10 @@
     # dates = "daily"; # default 04:04
     randomizedDelaySec = "45min";
     flags = [ "--refresh" ];
+    allowReboot = true;
+    rebootWindow = {
+      upper = "06:00";
+      lower = "02:00";
+    };
   };
 }