diff --git a/modules/darwin/nix.nix b/modules/darwin/nix.nix
index 45ce730..b94c472 100644
--- a/modules/darwin/nix.nix
+++ b/modules/darwin/nix.nix
@@ -25,12 +25,8 @@
       fi
     '';
 
-  # nix auto garbage collection
-  nix.gc = {
-    automatic = true;
-    interval = { Weekday = 0; Hour = 0; Minute = 0; };
-    options = "--delete-older-than 7d";
-  };
+  # use determinate nix
+  nix.enable = false;
 
   # changing this might break
   system.stateVersion = 5;