diff --git a/hosts/build02/nixpkgs-update.nix b/hosts/build02/nixpkgs-update.nix
index 1851d14..e58340e 100644
--- a/hosts/build02/nixpkgs-update.nix
+++ b/hosts/build02/nixpkgs-update.nix
@@ -189,7 +189,6 @@ in
   systemd.services.nixpkgs-update-worker2 = mkWorker "worker2";
   systemd.services.nixpkgs-update-worker3 = mkWorker "worker3";
   systemd.services.nixpkgs-update-worker4 = mkWorker "worker4";
-  systemd.services.nixpkgs-update-worker5 = mkWorker "worker5";
   # Too many workers cause out-of-memory.
 
   systemd.services.nixpkgs-update-supervisor = {