diff --git a/rosbot_bringup/test/test_multirobot.py b/rosbot_bringup/test/test_multirobot.py
index 2abcf4f7..621316f4 100644
--- a/rosbot_bringup/test/test_multirobot.py
+++ b/rosbot_bringup/test/test_multirobot.py
@@ -49,7 +49,7 @@ def generate_test_description():
             }.items(),
         )
 
-        delayed_bringup = TimerAction(period=5.0*i, actions=[bringup_launch])
+        delayed_bringup = TimerAction(period=5.0 * i, actions=[bringup_launch])
         actions.append(delayed_bringup)
 
     return LaunchDescription(actions)
diff --git a/rosbot_controller/launch/controller.launch.py b/rosbot_controller/launch/controller.launch.py
index 62b53af0..7e17d826 100644
--- a/rosbot_controller/launch/controller.launch.py
+++ b/rosbot_controller/launch/controller.launch.py
@@ -26,6 +26,7 @@
 from launch_ros.actions import Node, SetParameter
 from launch_ros.substitutions import FindPackageShare
 
+
 def generate_launch_description():
     namespace = LaunchConfiguration("namespace")
     declare_namespace_arg = DeclareLaunchArgument(
diff --git a/rosbot_gazebo/test/test_utils.py b/rosbot_gazebo/test/test_utils.py
index efbb8022..5e4c61a7 100644
--- a/rosbot_gazebo/test/test_utils.py
+++ b/rosbot_gazebo/test/test_utils.py
@@ -60,7 +60,9 @@ def __init__(self, name="test_node", namespace=None):
         for range_topic_name in self.RANGE_SENSORS_TOPICS:
             sub = self.create_subscription(LaserScan, range_topic_name, self.ranges_callback, 10)
             self.range_subs.append(sub)
-        self.scan_sub = self.create_subscription(LaserScan, "scan_filtered", self.scan_callback, 10)
+        self.scan_sub = self.create_subscription(
+            LaserScan, "scan_filtered", self.scan_callback, 10
+        )
 
         # Timer - send cmd_vel and check if the time needed for speed stabilization has elapsed
         self.timer = self.create_timer(0.1, self.timer_callback)