diff --git a/README.md b/README.md
index eeb453d..3f6b679 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ export TURTLEBOT3_MODEL=burger
 
 ```bash
 echo 'source /opt/ros/humble/setup.bash' >> ~/.bashrc
-echo 'source ~/ros_ws/install/setup.bash' >> ~/.bashrc
+echo 'source /workspace/install/setup.bash' >> ~/.bashrc
 echo 'export TURTLEBOT3_MODEL=burger' >> ~/.bashrc
 source ~/.bashrc
 ```
diff --git a/gzsim_run.sh b/gzsim_run.sh
index c3e603a..e0a23a6 100755
--- a/gzsim_run.sh
+++ b/gzsim_run.sh
@@ -4,7 +4,7 @@ set -euo pipefail
 
 ROOT="/workspace"
 
-sleep 30
+sleep 5
 
 set +u
 source /opt/ros/humble/setup.bash
@@ -35,7 +35,7 @@ GZSIM_PID=$!
 
 echo "[autorun] tb3_gzsim pid=${GZSIM_PID}, log=${LOG_DIR}/tb3_gzsim.log"
 
-sleep 60
+sleep 8
 
 if ps -p "$GZSIM_PID" > /dev/null; then
   echo "[autorun] tb3_gzsim is still running"