diff --git a/hosts/poseidon/default.nix b/hosts/poseidon/default.nix
index ead5c0c..b06224d 100644
--- a/hosts/poseidon/default.nix
+++ b/hosts/poseidon/default.nix
@@ -19,7 +19,6 @@ in {
 
   # Use the GRUB 2 boot loader.
   boot.loader.grub.enable = true;
-  boot.loader.grub.version = 2;
   boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only
 
   boot.supportedFilesystems = ["btrfs"];