diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f9a04d5..bdefa2f 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -16,7 +16,7 @@ repos:
     hooks:
     -   id: isort
 -   repo: https://github.com/psf/black
-    rev: 23.12.1
+    rev: 24.1.1
     hooks:
     -   id: black
 -   repo: https://github.com/collective/zpretty
@@ -33,7 +33,7 @@ repos:
 #  """
 ##
 -   repo: https://github.com/PyCQA/flake8
-    rev: 6.1.0
+    rev: 7.0.0
     hooks:
     -   id: flake8
 
diff --git a/Products/PortalTransforms/cache.py b/Products/PortalTransforms/cache.py
index 1d54f8d..47ca03d 100644
--- a/Products/PortalTransforms/cache.py
+++ b/Products/PortalTransforms/cache.py
@@ -1,5 +1,6 @@
 """Cache
 """
+
 from Acquisition import aq_base
 from time import time
 
diff --git a/Products/PortalTransforms/setuphandlers.py b/Products/PortalTransforms/setuphandlers.py
index 02ab700..32c6980 100644
--- a/Products/PortalTransforms/setuphandlers.py
+++ b/Products/PortalTransforms/setuphandlers.py
@@ -1,6 +1,7 @@
 """
 PortalTransforms setup handlers.
 """
+
 from io import StringIO as NativeStringIO
 from Products.CMFCore.utils import getToolByName
 
diff --git a/Products/PortalTransforms/transforms/lynx_dump.py b/Products/PortalTransforms/transforms/lynx_dump.py
index 27ddcc3..78f0a2d 100644
--- a/Products/PortalTransforms/transforms/lynx_dump.py
+++ b/Products/PortalTransforms/transforms/lynx_dump.py
@@ -1,6 +1,7 @@
 """
 Uses lynx -dump
 """
+
 from Products.PortalTransforms.interfaces import ITransform
 from Products.PortalTransforms.libtransforms.commandtransform import popentransform
 from zope.interface import implementer
diff --git a/Products/PortalTransforms/transforms/pdf_to_html.py b/Products/PortalTransforms/transforms/pdf_to_html.py
index c149176..6325001 100644
--- a/Products/PortalTransforms/transforms/pdf_to_html.py
+++ b/Products/PortalTransforms/transforms/pdf_to_html.py
@@ -2,6 +2,7 @@
 Uses the http://sf.net/projects/pdftohtml bin to do its handy work
 
 """
+
 from Products.PortalTransforms.interfaces import ITransform
 from Products.PortalTransforms.libtransforms.commandtransform import commandtransform
 from Products.PortalTransforms.libtransforms.utils import bodyfinder
diff --git a/Products/PortalTransforms/transforms/rtf_to_xml.py b/Products/PortalTransforms/transforms/rtf_to_xml.py
index dc1b134..4f89dff 100644
--- a/Products/PortalTransforms/transforms/rtf_to_xml.py
+++ b/Products/PortalTransforms/transforms/rtf_to_xml.py
@@ -2,6 +2,7 @@
 Uses the http://sf.net/projects/rtf2xml bin to do its handy work
 
 """
+
 from Products.PortalTransforms.interfaces import ITransform
 from Products.PortalTransforms.libtransforms.commandtransform import commandtransform
 from Products.PortalTransforms.libtransforms.utils import sansext
diff --git a/Products/PortalTransforms/unsafe_transforms/build_transforms.py b/Products/PortalTransforms/unsafe_transforms/build_transforms.py
index bf6ad5b..a8a2876 100644
--- a/Products/PortalTransforms/unsafe_transforms/build_transforms.py
+++ b/Products/PortalTransforms/unsafe_transforms/build_transforms.py
@@ -1,6 +1,7 @@
 """try to build some useful transformations with the command and xml
 transforms and the available binaries
 """
+
 from command import ExternalCommandTransform
 from Products.PortalTransforms.libtransforms.utils import bin_search
 from Products.PortalTransforms.libtransforms.utils import MissingBinary
diff --git a/Products/PortalTransforms/utils.py b/Products/PortalTransforms/utils.py
index ef3695e..c0d3c8a 100644
--- a/Products/PortalTransforms/utils.py
+++ b/Products/PortalTransforms/utils.py
@@ -1,5 +1,6 @@
 """some common utilities
 """
+
 # directory where template for the ZMI are located
 import logging
 import os.path