diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 80aa38235..9d52b3964 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -17,7 +17,7 @@ repos:
     args: [--markdown-linebreak-ext=md]
 
 - repo: https://github.com/ambv/black
-  rev: 22.12.0
+  rev: 23.1.0
   hooks:
   - id: black
     name: Blacken
diff --git a/demo/vertical/define_ontology.py b/demo/vertical/define_ontology.py
index d13acbbc1..3770d4e66 100755
--- a/demo/vertical/define_ontology.py
+++ b/demo/vertical/define_ontology.py
@@ -52,7 +52,6 @@
 
 # Add new classes and object/data properties needed by the use case
 with onto:
-
     #
     # Relations
     # =========
diff --git a/ontopy/graph.py b/ontopy/graph.py
index 5a6302d21..ec142243a 100644
--- a/ontopy/graph.py
+++ b/ontopy/graph.py
@@ -479,7 +479,6 @@ def add_edge(self, subject, predicate, obj, edgelabel=None, **attrs):
             raise RuntimeError(f'`object` "{obj}" must have been added')
         key = (subject, predicate, obj)
         if key not in self.edges:
-
             if edgelabel is None:
                 edgelabel = self.edgelabels
 
@@ -531,7 +530,6 @@ def add_source_edges(  # pylint: disable=too-many-arguments,too-many-branches
         entity = self.ontology[source] if isinstance(source, str) else source
         label = get_label(entity)
         for relation in entity.is_a:
-
             # isA
             if isinstance(
                 relation, (owlready2.ThingClass, owlready2.ObjectPropertyClass)
diff --git a/ontopy/ontology.py b/ontopy/ontology.py
index 77028aa6b..90eed6c08 100644
--- a/ontopy/ontology.py
+++ b/ontopy/ontology.py
@@ -1131,7 +1131,6 @@ class docstrings are mapped to.  Defaults to "comment".
             if not hasattr(cls, "prefLabel"):
                 # no prefLabel - create new annotation property..
                 with self:
-
                     # pylint: disable=invalid-name,missing-class-docstring
                     # pylint: disable=unused-variable
                     class prefLabel(owlready2.label):
diff --git a/requirements_dev.txt b/requirements_dev.txt
index e963c4cde..368511e28 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,5 @@
-pre-commit~=2.21
+pre-commit>=2.21.0,<3; python_version<"3.8"
+pre-commit~=3.0; python_version>="3.8"
 pylint~=2.15
 pytest~=7.2
 pytest-cov~=4.0
diff --git a/tests/test_basic.py b/tests/test_basic.py
index 81a1f8315..1be4e8eb0 100755
--- a/tests/test_basic.py
+++ b/tests/test_basic.py
@@ -30,7 +30,6 @@ def test_basic(emmo: "Ontology") -> None:
         onto.new_entity("Hydr ogen", emmo.Atom)
 
     with onto:
-
         # Add entity using python classes
         class Oxygen(emmo.Atom):
             """Oxygen atom."""
diff --git a/tests/test_catalog.py b/tests/test_catalog.py
index 5be3e4aa3..c5d2fc600 100644
--- a/tests/test_catalog.py
+++ b/tests/test_catalog.py
@@ -7,7 +7,6 @@
 
 
 def test_catalog(repo_dir: "Path", tmpdir: "Path") -> None:
-
     ontodir = repo_dir / "tests" / "catalogs_for_testing"
     catalog_expected = {
         "http://emmo.info/testonto/0.1.0": str(ontodir / "testonto.ttl"),
diff --git a/tools/ontoconvert b/tools/ontoconvert
index 1dae42466..7b308b1eb 100755
--- a/tools/ontoconvert
+++ b/tools/ontoconvert
@@ -270,7 +270,6 @@ def main(argv: list = None):
             graph2.serialize(destination=args.output, format=fmt)
 
         else:
-
             onto.save(
                 args.output,
                 format=output_format,