1 files changed, 1 insertions, 1 deletions

diff --git a/system-profiles/nfsroot.nix b/system-profiles/nfsroot.nix
index 1cd930d9..b0116d61 100644
--- a/system-profiles/nfsroot.nix
+++ b/system-profiles/nfsroot.nix
@@ -48,7 +48,7 @@ in {
       fileSystems."/nix/.ro-store" = mkImageMediaOverride
         { fsType = "nfs4";
           device = cfg.storeDevice;
-          options = [ "ro" ];
+          options = [ "ro" "nfsvers=4.2" ];
           neededForBoot = true;
         };