diff --git a/images/simulator/simulator.py b/images/simulator/simulator.py
index 24181d2..6645574 100644
--- a/images/simulator/simulator.py
+++ b/images/simulator/simulator.py
@@ -1,5 +1,4 @@
-"""Modbus simulator
-"""
+"""Modbus simulator"""
 
 # See also example https://pymodbus.readthedocs.io/en/latest/source/example/updating_server.html
 import logging
diff --git a/requirements.dev.txt b/requirements.dev.txt
index 3b1cff4..f0a0aac 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -1,2 +1,2 @@
-black~=24.3.0
+black~=25.1.0
 pylint~=3.1.0
\ No newline at end of file
diff --git a/tedge_modbus/operations/c8y_coils.py b/tedge_modbus/operations/c8y_coils.py
index dd47d35..94647ca 100644
--- a/tedge_modbus/operations/c8y_coils.py
+++ b/tedge_modbus/operations/c8y_coils.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
-"""Cumulocity IoT c8y_Coils operation handler
-"""
+"""Cumulocity IoT c8y_Coils operation handler"""
 from .context import Context
 
 
diff --git a/tedge_modbus/operations/c8y_modbus_configuration.py b/tedge_modbus/operations/c8y_modbus_configuration.py
index e6a1df4..7a249d5 100644
--- a/tedge_modbus/operations/c8y_modbus_configuration.py
+++ b/tedge_modbus/operations/c8y_modbus_configuration.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
-"""Cumulocity IoT ModbusConfiguration operation handler
-"""
+"""Cumulocity IoT ModbusConfiguration operation handler"""
 import json
 import logging
 import toml
diff --git a/tedge_modbus/operations/c8y_modbus_device.py b/tedge_modbus/operations/c8y_modbus_device.py
index afb3092..7bd69a2 100644
--- a/tedge_modbus/operations/c8y_modbus_device.py
+++ b/tedge_modbus/operations/c8y_modbus_device.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
-"""Cumulocity IoT Modbus device operation handler
-"""
+"""Cumulocity IoT Modbus device operation handler"""
 import logging
 from dataclasses import dataclass
 import requests
diff --git a/tedge_modbus/operations/c8y_registers.py b/tedge_modbus/operations/c8y_registers.py
index af2f688..b99f0ec 100644
--- a/tedge_modbus/operations/c8y_registers.py
+++ b/tedge_modbus/operations/c8y_registers.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
-"""Cumulocity IoT c8y_Registers operation handler
-"""
+"""Cumulocity IoT c8y_Registers operation handler"""
 from .context import Context
 
 
diff --git a/tedge_modbus/operations/context.py b/tedge_modbus/operations/context.py
index 8c0922a..342818b 100644
--- a/tedge_modbus/operations/context.py
+++ b/tedge_modbus/operations/context.py
@@ -1,5 +1,4 @@
-"""Operation context
-"""
+"""Operation context"""
 
 import subprocess
 from dataclasses import dataclass
diff --git a/tedge_modbus/reader/banner.py b/tedge_modbus/reader/banner.py
index 7cc61f0..fd70a7b 100644
--- a/tedge_modbus/reader/banner.py
+++ b/tedge_modbus/reader/banner.py
@@ -1,5 +1,4 @@
-"""Banner for cli friendly applications
-"""
+"""Banner for cli friendly applications"""
 
 # Generated using pyfiglet
 # import pyfiglet; BANNER = pyfiglet.figlet_format("Modbus plugin for thin-edge.io")
diff --git a/tedge_modbus/reader/reader.py b/tedge_modbus/reader/reader.py
index df1e9b4..6ec3475 100644
--- a/tedge_modbus/reader/reader.py
+++ b/tedge_modbus/reader/reader.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
-"""Modbus reader
-"""
+"""Modbus reader"""
 import argparse
 import json
 import logging
diff --git a/tedge_modbus/reader/smartresttemplates.py b/tedge_modbus/reader/smartresttemplates.py
index ca43a27..3692856 100644
--- a/tedge_modbus/reader/smartresttemplates.py
+++ b/tedge_modbus/reader/smartresttemplates.py
@@ -1,5 +1,4 @@
-"""Cumulocity IoT SmartREST template definitions
-"""
+"""Cumulocity IoT SmartREST template definitions"""
 
 # pylint: disable=line-too-long
 SMARTREST_TEMPLATES = [