diff --git a/nixos/modules/virtualisation/incus.nix b/nixos/modules/virtualisation/incus.nix
index 8cb42adc0368..f4c904ff670c 100644
--- a/nixos/modules/virtualisation/incus.nix
+++ b/nixos/modules/virtualisation/incus.nix
@@ -44,19 +44,21 @@ let
         qemu-utils
         qemu_kvm
         rsync
-        skopeo
         squashfs-tools-ng
         squashfsTools
         sshfs
         swtpm
         systemd
         thin-provisioning-tools
-        umoci
         util-linux
         virtiofsd
         xdelta
         xz
       ]
+      ++ lib.optionals (lib.versionAtLeast cfg.package.version "6.3.0") [
+        skopeo
+        umoci
+      ]
       ++ lib.optionals config.security.apparmor.enable [
         apparmor-bin-utils
 
@@ -111,10 +113,11 @@ let
   environment = lib.mkMerge [
     {
       INCUS_LXC_TEMPLATE_CONFIG = "${pkgs.lxcfs}/share/lxc/config";
-      INCUS_EDK2_PATH = ovmf;
       INCUS_USBIDS_PATH = "${pkgs.hwdata}/share/hwdata/usb.ids";
       PATH = lib.mkForce serverBinPath;
     }
+    (lib.mkIf (lib.versionOlder cfg.package.version "6.3.0") { INCUS_OVMF_PATH = ovmf; })
+    (lib.mkIf (lib.versionAtLeast cfg.package.version "6.3.0") { INCUS_EDK2_PATH = ovmf; })
     (lib.mkIf (cfg.ui.enable) { "INCUS_UI" = cfg.ui.package; })
   ];