diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 80e876a58..8b1d006fc 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,7 +18,7 @@ repos:
 #     hooks:
 #     -   id: black
 -   repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.9.2
+    rev: v0.9.6
     hooks:
     -   id: ruff
 # -   repo: https://github.com/econchick/interrogate
@@ -26,7 +26,7 @@ repos:
 #     hooks:
 #     -   id: interrogate
 -   repo: https://github.com/codespell-project/codespell
-    rev: v2.3.0
+    rev: v2.4.1
     hooks:
     -   id: codespell
         additional_dependencies:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 34da87402..0b213652a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Changed
 - Removed `requirements-min.txt` in favor of the `min-reqs` optional dependency group in `pyproject.toml`. @rly [#1246](https://github.com/hdmf-dev/hdmf/pull/1246)
 - Updated GitHub actions and ruff configuration. @rly [#1246](https://github.com/hdmf-dev/hdmf/pull/1246)
+- `hdmf.monitor` is unused and undocumented. It has been deprecated and will be removed in HDMF 5.0. @rly [#1245](https://github.com/hdmf-dev/hdmf/pull/1245)
 
 ## HDMF 4.0.0 (January 22, 2025)
 
diff --git a/src/hdmf/monitor.py b/src/hdmf/monitor.py
index 823ccf72d..9f8e7e0cc 100644
--- a/src/hdmf/monitor.py
+++ b/src/hdmf/monitor.py
@@ -1,8 +1,16 @@
 from abc import ABCMeta, abstractmethod
+import warnings
 
 from .data_utils import AbstractDataChunkIterator, DataChunkIterator, DataChunk
 from .utils import docval, getargs
 
+warnings.warn(
+    "The hdmf.monitor module is deprecated and will be removed in HDMF 5.0. If you are using this module, "
+    "please copy this module to your codebase or raise an issue in the HDMF repository: "
+    "https://github.com/hdmf-dev/hdmf/issues",
+    DeprecationWarning,
+)
+
 
 class NotYetExhausted(Exception):
     pass
diff --git a/tests/unit/test_monitor.py b/tests/unit/test_monitor.py
new file mode 100644
index 000000000..f9af06a9c
--- /dev/null
+++ b/tests/unit/test_monitor.py
@@ -0,0 +1,6 @@
+import pytest
+
+
+def test_deprecation_warning():
+    with pytest.warns(DeprecationWarning):
+        import hdmf.monitor  # noqa: F401