diff --git a/flake.lock b/flake.lock
index fcf32c1..56950b9 100644
--- a/flake.lock
+++ b/flake.lock
@@ -128,11 +128,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1685533922,
-        "narHash": "sha256-y4FCQpYafMQ42l1V+NUrMel9RtFtZo59PzdzflKR/lo=",
+        "lastModified": 1685865905,
+        "narHash": "sha256-XJZ/o17eOd2sEsGif+/MQBnfa2DKmndWgJyc7CWajFc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3a70dd92993182f8e514700ccf5b1ae9fc8a3b8d",
+        "rev": "e7603eba51f2c7820c0a182c6bbb351181caa8e7",
         "type": "github"
       },
       "original": {
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"];