diff --git a/system/configuration.nix b/system/configuration.nix
index c4594cc..8ae0230 100644
--- a/system/configuration.nix
+++ b/system/configuration.nix
@@ -134,9 +134,10 @@
   nix = {
     gc = {
       automatic = true;
-      dates = "monthly";
+      dates = "weekly";
       options = "--delete-older-than 7d";
     };
+    optimise.automatic = true;
     settings = {
       auto-optimise-store = true;
       substituters = [