diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 508e4ae..4db1291 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -8,13 +8,13 @@ repos:
       - id: check-yaml
       - id: check-added-large-files
   - repo: https://github.com/psf/black
-    rev: 22.3.0
+    rev: 23.1.0
     hooks:
       - id: black
         language_version: python3
         files: ^maubot/.*\.pyi?$
   - repo: https://github.com/PyCQA/isort
-    rev: 5.10.1
+    rev: 5.12.0
     hooks:
       - id: isort
         files: ^maubot/.*\.pyi?$
diff --git a/maubot/lib/zipimport.py b/maubot/lib/zipimport.py
index 963f14f..e7b77db 100644
--- a/maubot/lib/zipimport.py
+++ b/maubot/lib/zipimport.py
@@ -323,6 +323,7 @@ _zip_searchorder = (
     (".py", False, False),
 )
 
+
 # Given a module name, return the potential file path in the
 # archive (without extension).
 def _get_module_path(self, fullname):
@@ -351,6 +352,7 @@ def _get_module_info(self, fullname):
 
 # implementation
 
+
 # _read_directory(archive) -> files dict (new reference)
 #
 # Given a path to a Zip archive, build a dict, mapping file names
@@ -524,6 +526,7 @@ cp437_table = (
 
 _importing_zlib = False
 
+
 # Return the zlib.decompress function object, or NULL if zlib couldn't
 # be imported. The function is cached when found, so subsequent calls
 # don't import zlib again.