diff --git a/config/default.nix b/config/default.nix
index 84320f1a..112d4ec4 100644
--- a/config/default.nix
+++ b/config/default.nix
@@ -185,6 +185,7 @@
       banner = ''
         See https://gitea.c3d2.de/c3d2/nix-config for configuration and documentation
       '';
+      passwordAuthentication = false;
       permitRootLogin = "prohibit-password";
     };