diff --git a/modules/devos/nix.nix b/modules/devos/nix.nix
index 96ac5ca..80ceda6 100644
--- a/modules/devos/nix.nix
+++ b/modules/devos/nix.nix
@@ -19,6 +19,7 @@ with lib;
     gc = {
       automatic = true;
       options = "--delete-older-than 3d";
+      dates = "weekly";
     };
 
     optimise.automatic = true;