diff --git a/modules/cli/nix.nix b/modules/cli/nix.nix
index 39b68b5..9f6353a 100644
--- a/modules/cli/nix.nix
+++ b/modules/cli/nix.nix
@@ -6,6 +6,7 @@
     gc = {
       automatic = true;
       options = "--max-freed $((32 * 1024**3)) --delete-older-than 14d";
+      dates = "weekly";
     };
     optimise.automatic = true;
   };