diff --git a/modules/common/default.nix b/modules/common/default.nix
index 319fd94..0f259da 100644
--- a/modules/common/default.nix
+++ b/modules/common/default.nix
@@ -35,6 +35,7 @@
     openssh = {
       enable = true;
       permitRootLogin = "no";
+      passwordAuthentication = false;
     };
   };