diff --git a/common.nix b/common.nix
index 8f70520..7b2ee45 100644
--- a/common.nix
+++ b/common.nix
@@ -12,6 +12,8 @@
     networkmanager.enable = true;
   };
 
+  users.mutableUsers = false;
+
   nix = {
     settings = {
       substituters = lib.mkForce [