diff --git a/turtlebot3_ws/README.md b/turtlebot3_ws/README.md
index 25e7b59c..d19f1b86 100644
--- a/turtlebot3_ws/README.md
+++ b/turtlebot3_ws/README.md
@@ -1 +1,3 @@
-# turtlebot3_ws
+# ROS 2 Essentials Workspace
+
+Please visit <https://j3soon.github.io/ros2-essentials/> for documentation.
diff --git a/turtlebot3_ws/docker/Dockerfile b/turtlebot3_ws/docker/Dockerfile
index b902d1d8..54a78015 100644
--- a/turtlebot3_ws/docker/Dockerfile
+++ b/turtlebot3_ws/docker/Dockerfile
@@ -114,11 +114,11 @@ RUN mkdir /home/$USERNAME/.gazebo
 # Note that installing Isaac Sim with pip is experimental, keep this in mind when unexpected error occurs
 # TODO: Remove the note above when it is no longer experimental
 # Ref: https://docs.omniverse.nvidia.com/isaacsim/latest/installation/install_python.html#installation-using-pip
-RUN --mount=type=cache,target=/home/user/.cache/pip,sharing=private \
+RUN --mount=type=cache,target=/home/$USERNAME/.cache/pip,sharing=private \
     if [ "$TARGETARCH" = "amd64" ]; then \
         python3 -V | grep "Python 3.10" \
-        && pip install isaacsim==4.1.0.0 --extra-index-url https://pypi.nvidia.com \
-        && pip install isaacsim-extscache-physics==4.1.0.0 isaacsim-extscache-kit==4.1.0.0 isaacsim-extscache-kit-sdk==4.1.0.0 --extra-index-url https://pypi.nvidia.com; \
+        && pip install isaacsim==4.2.0.2 --extra-index-url https://pypi.nvidia.com \
+        && pip install isaacsim-extscache-physics==4.2.0.2 isaacsim-extscache-kit==4.2.0.2 isaacsim-extscache-kit-sdk==4.2.0.2 --extra-index-url https://pypi.nvidia.com; \
     fi
 
 # Install custom tools
@@ -148,7 +148,8 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=private \
     ros-$ROS_DISTRO-hls-lfcd-lds-driver \
     && sudo rm -rf /var/lib/apt/lists/*
 
-COPY .bashrc /home/$USERNAME/.bashrc
+COPY --chown=$USERNAME:$USERNAME \
+     .bashrc /home/$USERNAME/.bashrc
 # TODO: Copy additional files here
 ENTRYPOINT []
 CMD ["/bin/bash"]