diff --git a/config.nix b/config.nix
index f80ddf2..f7418ab 100644
--- a/config.nix
+++ b/config.nix
@@ -85,11 +85,6 @@ in
     };
   };
 
-  users.users.demo = {
-    isNormalUser = true;
-    password = "test";
-  };
-
   users.users.root = {
     password = "test";
     shell = lib.mkForce (lib.getExe pkgs.bash);
@@ -120,6 +115,7 @@ in
       enable = true;
       settings = {
         PermitRootLogin = "no";
+        PasswordAuthentication = false;
       };
     };
   };