diff --git a/nixos/machines/default.nix b/nixos/machines/default.nix
index 2d88cd9..a520f90 100644
--- a/nixos/machines/default.nix
+++ b/nixos/machines/default.nix
@@ -117,7 +117,7 @@
     hypervisorName = "lewis";
 
     nixosModule = {
-      microvm.balloonMem = 5632;
+      microvm.balloonMem = 5120;
 
       lab = {
         dockerSwarm.enable = true;