diff --git a/Dockerfile b/Dockerfile
index 6f1264a..d7a0f9e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,7 +24,6 @@
     ros-noetic-move-base ros-noetic-urdf ros-noetic-xacro \
     ros-noetic-compressed-image-transport ros-noetic-rqt* ros-noetic-rviz \
     ros-noetic-gmapping ros-noetic-navigation ros-noetic-interactive-markers \
-    ros-noetic-dynamixel-sdk \
     ros-noetic-multirobot-map-merge \
     ros-noetic-image-transport \
     ros-noetic-cv-bridge \
@@ -69,7 +68,8 @@
 RUN cd /home/ubuntu/catkin_ws/src && \
     git clone -b noetic-devel https://github.com/ROBOTIS-GIT/turtlebot3_simulations.git && \
     git clone -b noetic-devel https://github.com/ROBOTIS-GIT/turtlebot3_autorace_2020.git && \
-    git clone -b noetic-devel https://github.com/ROBOTIS-GIT/turtlebot3.git
+    git clone -b noetic-devel https://github.com/ROBOTIS-GIT/turtlebot3.git && \
+    git clone -b noetic-devel https://github.com/ROBOTIS-GIT/DynamixelSDK.git
 
 COPY ./startup.sh /startup.sh
 COPY ./scripts /home/ubuntu/scripts
diff --git a/src/turtlebot3_autorace_2020/turtlebot3_autorace_detect/nodes/.detect_intersection_sign.swp b/src/turtlebot3_autorace_2020/turtlebot3_autorace_detect/nodes/.detect_intersection_sign.swp
deleted file mode 100644
index 6f30bdf..0000000
--- a/src/turtlebot3_autorace_2020/turtlebot3_autorace_detect/nodes/.detect_intersection_sign.swp
+++ /dev/null
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