diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 415bc31..565c1c8 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -10,6 +10,6 @@ repos:
       - id: trailing-whitespace
 
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 25.11.0
+    rev: 26.3.0
     hooks:
       - id: black
diff --git a/tcms_api/__init__.py b/tcms_api/__init__.py
index 9b2f743..421b4e5 100644
--- a/tcms_api/__init__.py
+++ b/tcms_api/__init__.py
@@ -106,6 +106,7 @@
     to open a pull request with your own examples!
 
 """
+
 import os
 from configparser import ConfigParser
 from datetime import datetime, timedelta
diff --git a/tcms_api/xmlrpc.py b/tcms_api/xmlrpc.py
index dfe7202..a9a5862 100644
--- a/tcms_api/xmlrpc.py
+++ b/tcms_api/xmlrpc.py
@@ -17,7 +17,6 @@
 
 from tcms_api.version import __version__
 
-
 VERBOSE = 0
 _PYTHON_VERSION = sys.version.replace("\n", "")
 
diff --git a/tests/krb5/integration_test.py b/tests/krb5/integration_test.py
index 222506a..858afcb 100755
--- a/tests/krb5/integration_test.py
+++ b/tests/krb5/integration_test.py
@@ -14,7 +14,6 @@
 import requests
 from tcms_api import TCMS
 
-
 try:
     _create_unverified_https_context = ssl._create_unverified_context
 except AttributeError:
diff --git a/tests/krb5/kiwitcms_kerberos/db_init.py b/tests/krb5/kiwitcms_kerberos/db_init.py
index 29eda6e..566ad24 100644
--- a/tests/krb5/kiwitcms_kerberos/db_init.py
+++ b/tests/krb5/kiwitcms_kerberos/db_init.py
@@ -4,7 +4,6 @@
 from tcms.management.models import Classification
 from tcms.utils.permissions import initiate_user_with_default_setups
 
-
 # this will be used for API calls
 bot = User.objects.create(
     username="kiwitcms-bot",
diff --git a/tests/krb5/kiwitcms_kerberos/urls.py b/tests/krb5/kiwitcms_kerberos/urls.py
index db0fa42..66ad0c1 100644
--- a/tests/krb5/kiwitcms_kerberos/urls.py
+++ b/tests/krb5/kiwitcms_kerberos/urls.py
@@ -3,7 +3,6 @@
 
 from tcms.urls import urlpatterns
 
-
 urlpatterns += [
     re_path(r"", include("social_django.urls", namespace="social")),
 ]
diff --git a/tests/krb5/python_credentials_test.py b/tests/krb5/python_credentials_test.py
index 79a2351..bfb738f 100755
--- a/tests/krb5/python_credentials_test.py
+++ b/tests/krb5/python_credentials_test.py
@@ -12,7 +12,6 @@
 import requests
 from tcms_api import TCMS
 
-
 try:
     _create_unverified_https_context = ssl._create_unverified_context
 except AttributeError: