diff --git a/ops/nixos/marukuru/default.nix b/ops/nixos/marukuru/default.nix
index 32763b0f93..d5be5fc5fb 100644
--- a/ops/nixos/marukuru/default.nix
+++ b/ops/nixos/marukuru/default.nix
@@ -6,7 +6,7 @@
 let
   inherit (depot.ops) secrets;
 in {
-  imports = [ <nixpkgs/nixos/modules/profiles/qemu-guest.nix> ];
+  imports = [ ../../../third_party/nixpkgs/nixos/modules/profiles/qemu-guest.nix ];
   boot.kernelModules = [ "tcp_bbr" ];
   boot.kernel.sysctl = {
     "net.ipv6.conf.default.accept_ra" = 1;
diff --git a/ops/nixos/totoro/default.nix b/ops/nixos/totoro/default.nix
index 65b0740613..e195edfa10 100644
--- a/ops/nixos/totoro/default.nix
+++ b/ops/nixos/totoro/default.nix
@@ -7,7 +7,7 @@ let
   inherit (depot.ops) secrets;
 in {
   imports =
-    [ <nixpkgs/nixos/modules/installer/scan/not-detected.nix> ../lib/client.nix ../lib/whitby-distributed.nix ];
+    [ ../../../third_party/nixpkgs/nixos/modules/installer/scan/not-detected.nix ../lib/client.nix ../lib/whitby-distributed.nix ];
 
   boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usb_storage" "usbhid" "sd_mod" ];
   boot.kernelModules = lib.mkAfter [ "kvm-intel" ];