diff --git a/host/common/default.nix b/host/common/default.nix
index 915f64b..24c58bd 100644
--- a/host/common/default.nix
+++ b/host/common/default.nix
@@ -155,6 +155,13 @@ in {
         trusted-users = ["@wheel"];
       };
 
+      gc = {
+        automatic = true;
+        dates = "weekly";
+        options = "--delete-older-than 14d";
+        randomizedDelaySec = "30min";
+      };
+
       optimise.automatic = true;
     };