diff --git a/modules/base/gc.nix b/modules/base/gc.nix
index eb7ee2f..441a505 100644
--- a/modules/base/gc.nix
+++ b/modules/base/gc.nix
@@ -4,7 +4,7 @@ _: {
   nix.gc = {
     automatic = true;
     dates = "weekly";
-    options = "--delete-older-than 1w";
+    options = "--delete-older-than 7d";
   };
 
   nix.settings.auto-optimise-store = true;