diff --git a/src/nwbinspector/_configuration.py b/src/nwbinspector/_configuration.py
index efa62f82b..7352d2c41 100644
--- a/src/nwbinspector/_configuration.py
+++ b/src/nwbinspector/_configuration.py
@@ -1,13 +1,13 @@
 """Primary functions for inspecting NWBFiles."""
 
 import json
+from collections.abc import Callable
 from pathlib import Path
 from types import FunctionType
 from typing import Optional, Union
 
 import jsonschema
 import yaml
-from typing_extensions import Callable
 
 from ._registration import Importance, available_checks
 
diff --git a/src/nwbinspector/_registration.py b/src/nwbinspector/_registration.py
index f43e5caf6..418069f62 100644
--- a/src/nwbinspector/_registration.py
+++ b/src/nwbinspector/_registration.py
@@ -1,5 +1,6 @@
 """Primary decorator used on a check function to add it to the registry and automatically parse its output."""
 
+from collections.abc import Callable
 from functools import wraps
 from typing import List, Optional, Union
 
@@ -8,7 +9,6 @@
 from pynwb import NWBFile
 from pynwb.ecephys import Device, ElectrodeGroup
 from pynwb.file import Subject
-from typing_extensions import Callable
 
 from ._types import Importance, InspectorMessage, Severity