diff --git a/modules/nix.nix b/modules/nix.nix
index 408dd82..98a1d68 100644
--- a/modules/nix.nix
+++ b/modules/nix.nix
@@ -44,8 +44,9 @@ in
     autoOptimiseStore = true;
 
     # less noticeable nix builds
-    daemonNiceLevel = 10;
-    daemonIONiceLevel = 5;
+    daemonCPUSchedPolicy = "idle";
+    daemonIOSchedClass = "idle";
+    daemonIOSchedPriority = 7;
   };
 
   nixpkgs.overlays = with inputs; [