diff --git a/service.nix b/service.nix
index aeb92df..d5c7837 100644
--- a/service.nix
+++ b/service.nix
@@ -79,6 +79,7 @@ in
           authentication = lib.mkOverride 10 ''
             local all all trust
             host all all ::1/128 trust
+            host all all 127.0.0.1/32 md5
           '';
 
           initialScript = pkgs.writeText "backend-initScript" ''