diff --git a/hosts/Rupert.nix b/hosts/Rupert.nix
index fa92614..258ab2b 100644
--- a/hosts/Rupert.nix
+++ b/hosts/Rupert.nix
@@ -169,6 +169,7 @@ in
     };
     # Don’t start automatically
     systemd.services."beesd@backup-disk".wantedBy = lib.mkForce [];
+    systemd.services."beesd@data".serviceConfig.CPUQuota = "10%";
 
     security.acme = {
         defaults = {