diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py
index 6cdfaba456c6..90c12261025d 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py
@@ -90,11 +90,11 @@ def tabulate(
     def format_row(row: Mapping[str, Any]) -> str:
         s = (2 * " ").join(
             f"{str(row[header]).ljust(width)}"
-            for header, width in zip(data_headers, column_widths)
+            for header, width in zip(data_headers, column_widths, strict=True)
         )
         return s.strip()
 
-    result = [format_row(dict(zip(data_headers, data_headers)))]
+    result = [format_row(dict(zip(data_headers, data_headers, strict=True)))]
     for row in data:
         result.append(format_row(row))
 
diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/helpers.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/helpers.py
index c7a2a29ee3dc..f27e491a632d 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/helpers.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/helpers.py
@@ -1,5 +1,6 @@
+from collections.abc import Callable
 from types import ModuleType
-from typing import Any, Callable
+from typing import Any
 
 
 def get_qualified_name(