diff --git a/modules/platform/upgrades.nix b/modules/platform/upgrades.nix
index bf21f3d..ef43a9c 100644
--- a/modules/platform/upgrades.nix
+++ b/modules/platform/upgrades.nix
@@ -4,6 +4,13 @@
       enable = true;
       flake = "github:Moe1369/nix-fleet#${host}";
       dates = "Sun 04:00";
+      persistent = true;
+    };
+    nix.gc = {
+      automatic = true;
+      dates = "Sun 04:00";
+      options = "--delete-older-than 7d";
+      persistent = true;
     };
   };
 }