diff --git a/system/default.nix b/system/default.nix
index 7bf2a20a..08ac278f 100644
--- a/system/default.nix
+++ b/system/default.nix
@@ -44,6 +44,10 @@
     flake = "github:alyraffauf/nixcfg";
     dates = "daily";
     operation = "boot";
+    rebootWindow = {
+      lower = "01:00";
+      upper = "05:00";
+    }
   };
 
   # Delete generations older than 7 days.