diff --git a/nvchecker/core.py b/nvchecker/core.py
index 033b304..d7097c3 100644
--- a/nvchecker/core.py
+++ b/nvchecker/core.py
@@ -78,6 +78,7 @@ def process_common_arguments(args: argparse.Namespace) -> bool:
     slogconf.exc_info,
     slogconf.filter_exc,
     slogconf.filter_nones,
+    slogconf.filter_taskname,
   ]
   logger_factory = None
 
diff --git a/nvchecker/slogconf.py b/nvchecker/slogconf.py
index 68f7166..b6a6afa 100644
--- a/nvchecker/slogconf.py
+++ b/nvchecker/slogconf.py
@@ -1,6 +1,6 @@
 # vim: se sw=2:
 # MIT licensed
-# Copyright (c) 2018 lilydjwg <lilydjwg@gmail.com>, et al.
+# Copyright (c) 2018-2020,2023-2024 lilydjwg <lilydjwg@gmail.com>, et al.
 
 import logging
 import os
@@ -44,6 +44,12 @@ def filter_nones(logger, level, event):
     del event['url']
   return event
 
+def filter_taskname(logger, level, event):
+  # added in Python 3.12, not useful to us, but appears as a normal KV.
+  if 'taskName' in event:
+    del event['taskName']
+  return event
+
 def filter_exc(logger, level, event):
   exc_info = event.get('exc_info')
   if not exc_info: