diff --git a/nixos/linux.nix b/nixos/linux.nix
index d3895ee..17181ae 100644
--- a/nixos/linux.nix
+++ b/nixos/linux.nix
@@ -162,6 +162,7 @@ in {
       "ubuntu" = {
         autoStart = true;
         image = "quineglobal/ubuntu-with-ssh";
+        tag = "687d50f2f6a6";
         volumes = [ ];
         environment = {};
         ports = ["222:22"];