diff --git a/hosts/shared.nix b/hosts/shared.nix
index 50ad7ab..22872c1 100644
--- a/hosts/shared.nix
+++ b/hosts/shared.nix
@@ -35,6 +35,9 @@
         ];
         commit-lock-file-summary = "flake.lock: Update";
         allow-import-from-derivation = false;
+
+        min-free = "100M";
+        max-free = "1G";
       };
     };