diff --git a/turtlebot3_manipulation_example/src/hello_moveit.cpp b/turtlebot3_manipulation_example/src/hello_moveit.cpp
index 887139c..f25e109 100644
--- a/turtlebot3_manipulation_example/src/hello_moveit.cpp
+++ b/turtlebot3_manipulation_example/src/hello_moveit.cpp
@@ -51,4 +51,4 @@ auto move_group_interface = MoveGroupInterface(node, "arm");
   // Shutdown ROS
   rclcpp::shutdown();
   return 0;
-}
\ No newline at end of file
+}
diff --git a/turtlebot3_manipulation_hardware/CHANGELOG.rst b/turtlebot3_manipulation_hardware/CHANGELOG.rst
index 8f5975a..e7b11b0 100644
--- a/turtlebot3_manipulation_hardware/CHANGELOG.rst
+++ b/turtlebot3_manipulation_hardware/CHANGELOG.rst
@@ -8,4 +8,4 @@ Changelog for package turtlebot3_manipulation_hardware
 * MoveIt environment configured
 * use ros2_control framework instead of ROBOTIS custom library
 * removed dependency to `turtlebot3_*`` and `open_manipulator` packages
-* Contributors: Hye-Jong KIM, Darby Lim, Will Son
\ No newline at end of file
+* Contributors: Hye-Jong KIM, Darby Lim, Will Son
diff --git a/turtlebot3_manipulation_moveit_config/.setup_assistant b/turtlebot3_manipulation_moveit_config/.setup_assistant
index 0d5e671..73f22be 100644
--- a/turtlebot3_manipulation_moveit_config/.setup_assistant
+++ b/turtlebot3_manipulation_moveit_config/.setup_assistant
@@ -22,4 +22,4 @@ moveit_setup_assistant_config:
       - position
     state:
       - position
-      - velocity
\ No newline at end of file
+      - velocity
diff --git a/turtlebot3_manipulation_moveit_config/CHANGELOG.rst b/turtlebot3_manipulation_moveit_config/CHANGELOG.rst
index 373d5d6..68393f1 100644
--- a/turtlebot3_manipulation_moveit_config/CHANGELOG.rst
+++ b/turtlebot3_manipulation_moveit_config/CHANGELOG.rst
@@ -8,4 +8,4 @@ Changelog for package turtlebot3_manipulation_moveit_config
 * MoveIt environment configured
 * use ros2_control framework instead of ROBOTIS custom library
 * removed dependency to `turtlebot3_*`` and `open_manipulator` packages
-* Contributors: Hye-Jong KIM, Darby Lim, Will Son
\ No newline at end of file
+* Contributors: Hye-Jong KIM, Darby Lim, Will Son
diff --git a/turtlebot3_manipulation_moveit_config/launch/setup_assistant.launch.py b/turtlebot3_manipulation_moveit_config/launch/setup_assistant.launch.py
index 7621045..fd169ea 100644
--- a/turtlebot3_manipulation_moveit_config/launch/setup_assistant.launch.py
+++ b/turtlebot3_manipulation_moveit_config/launch/setup_assistant.launch.py
@@ -23,4 +23,4 @@
 def generate_launch_description():
     moveit_config = MoveItConfigsBuilder("turtlebot3_manipulation",
     package_name="turtlebot3_manipulation_moveit_config").to_moveit_configs()
-    return generate_setup_assistant_launch(moveit_config)
\ No newline at end of file
+    return generate_setup_assistant_launch(moveit_config)
diff --git a/turtlebot3_manipulation_teleop/CHANGELOG.rst b/turtlebot3_manipulation_teleop/CHANGELOG.rst
index 5aabf11..caf828f 100644
--- a/turtlebot3_manipulation_teleop/CHANGELOG.rst
+++ b/turtlebot3_manipulation_teleop/CHANGELOG.rst
@@ -8,4 +8,4 @@ Changelog for package turtlebot3_manipulation_teleop
 * MoveIt environment configured
 * use ros2_control framework instead of ROBOTIS custom library
 * removed dependency to `turtlebot3_*`` and `open_manipulator` packages
-* Contributors: Hye-Jong KIM, Darby Lim, Will Son
\ No newline at end of file
+* Contributors: Hye-Jong KIM, Darby Lim, Will Son
diff --git a/turtlebot3_manipulation_teleop/include/turtlebot3_manipulation_teleop/turtlebot3_manipulation_teleop.hpp b/turtlebot3_manipulation_teleop/include/turtlebot3_manipulation_teleop/turtlebot3_manipulation_teleop.hpp
index afcf579..1669c4c 100644
--- a/turtlebot3_manipulation_teleop/include/turtlebot3_manipulation_teleop/turtlebot3_manipulation_teleop.hpp
+++ b/turtlebot3_manipulation_teleop/include/turtlebot3_manipulation_teleop/turtlebot3_manipulation_teleop.hpp
@@ -136,4 +136,4 @@ int main(int argc, char ** argv)
   return rc;
 }
 
-#endif  // TURTLEBOT3_MANIPULATION_TELEOP__TURTLEBOT3_MANIPULATION_TELEOP_HPP_
\ No newline at end of file
+#endif  // TURTLEBOT3_MANIPULATION_TELEOP__TURTLEBOT3_MANIPULATION_TELEOP_HPP_
diff --git a/turtlebot3_manipulation_teleop/src/turtlebot3_manipulation_teleop.cpp b/turtlebot3_manipulation_teleop/src/turtlebot3_manipulation_teleop.cpp
index 5e37731..2c814db 100644
--- a/turtlebot3_manipulation_teleop/src/turtlebot3_manipulation_teleop.cpp
+++ b/turtlebot3_manipulation_teleop/src/turtlebot3_manipulation_teleop.cpp
@@ -312,4 +312,4 @@ void KeyboardServo::spin()
   while (rclcpp::ok()) {
     rclcpp::spin_some(nh_);
   }
-}
\ No newline at end of file
+}