diff --git a/profiles/core.nix b/profiles/core.nix
index 9b1850c..6fb7510 100644
--- a/profiles/core.nix
+++ b/profiles/core.nix
@@ -40,7 +40,7 @@
         allow-import-from-derivation = false;
 
         min-free = 4 * 1024 * 1024 * 1024;
-        max-free = 8 * 1024 * 1024 * 1024;
+        max-free = 6 * 1024 * 1024 * 1024;
       };
     };