diff --git a/.github/workflows/ros1.yml b/.github/workflows/ros1.yml
index e0ea3245..7acc0f0e 100644
--- a/.github/workflows/ros1.yml
+++ b/.github/workflows/ros1.yml
@@ -36,6 +36,8 @@ jobs:
         sudo apt-get update
         sudo apt-get -y install ros-${{ matrix.ros_distro }}-rtabmap-ros python3-catkin-tools
         sudo apt-get -y remove ros-${{ matrix.ros_distro }}-rtabmap
+        sudo pip3 uninstall empy
+        sudo pip3 install empy==3.3.4
 
     - name: Setup catkin workspace
       run: |