diff --git a/roles/auto-upgrade.nix b/roles/auto-upgrade.nix
index ace045c..62fca4b 100644
--- a/roles/auto-upgrade.nix
+++ b/roles/auto-upgrade.nix
@@ -3,5 +3,5 @@
   system.autoUpgrade.flake = "github:nix-community/infra";
   system.autoUpgrade.allowReboot = true;
   system.autoUpgrade.dates = "hourly";
-  system.autoUpgrade.flags = [ "--option" "accept-flake-config" "true" ];
+  system.autoUpgrade.flags = [ "--option" "accept-flake-config" "true" "--option" "tarball-ttl" "0" ];
 }