diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7a9ea34..7d3e3d2 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -10,7 +10,7 @@ repos:
     - id: check-github-workflows
     - id: check-dependabot
 - repo: https://github.com/psf/black
-  rev: 23.12.1
+  rev: 24.1.1
   hooks:
     - id: black
 - repo: https://github.com/PyCQA/flake8
diff --git a/src/texthooks/_recorders.py b/src/texthooks/_recorders.py
index 65d185d..ae4b17a 100644
--- a/src/texthooks/_recorders.py
+++ b/src/texthooks/_recorders.py
@@ -59,9 +59,9 @@ def __init__(self, verbosity: int):
         # in py3.6+ the dict builtin maintains order, but being explicit is
         # slightly safer since we're being explicit about the fact that we want
         # to retain key order
-        self.by_fname: t.MutableMapping[
-            str, t.List[t.Tuple[str, str, int]]
-        ] = collections.OrderedDict()
+        self.by_fname: t.MutableMapping[str, t.List[t.Tuple[str, str, int]]] = (
+            collections.OrderedDict()
+        )
         self._file_encoding = _determine_encoding()
 
     def add(self, fname, original, updated, lineno):
@@ -143,9 +143,9 @@ def print_changes(
 class CheckRecorder:
     def __init__(self, verbosity: int):
         self._printer = _VPrinter(verbosity)
-        self.by_fname: t.MutableMapping[
-            str, t.List[t.Tuple[str, str, int]]
-        ] = collections.OrderedDict()
+        self.by_fname: t.MutableMapping[str, t.List[t.Tuple[str, str, int]]] = (
+            collections.OrderedDict()
+        )
         self._file_encoding = _determine_encoding()
 
     def add(self, fname, lineno):
diff --git a/src/texthooks/macro_expand.py b/src/texthooks/macro_expand.py
index e6a8380..2c8b657 100644
--- a/src/texthooks/macro_expand.py
+++ b/src/texthooks/macro_expand.py
@@ -14,6 +14,7 @@
 
    --macro 'issue:' '[texthooks#$VALUE](https://github.com/sirosen/texthooks/issues/$VALUE)'
 """  # noqa: E501
+
 import re
 
 from ._common import all_filenames, parse_cli_args