diff --git a/git/util.py b/git/util.py
index 5ccd2b04c..4a284b785 100644
--- a/git/util.py
+++ b/git/util.py
@@ -1295,5 +1295,20 @@ def list_items(cls, repo: "Repo", *args: Any, **kwargs: Any) -> Any:
 
 
 class NullHandler(logging.Handler):
-    def emit(self, record: object) -> None:
+    """Deprecated, use :class:`logging.NullHandler` instead.
+
+    This noop handler is like :class:`~logging.NullHandler` in the standard library,
+    which should be used instead, because it is now always available, and it overrides
+    more logging methods to make them noop. This class only overrides :meth:`emit`.
+    """
+
+    def __init__(self, level: int = logging.NOTSET) -> None:
+        warnings.warn(
+            "NullHandler in git.util is deprecated. Use logging.NullHandler instead.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        super().__init__(level)
+
+    def emit(self, record: logging.LogRecord) -> None:
         pass