diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 8e76384..37e16f7 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -32,8 +32,8 @@ jobs:
         shell: bash
         working-directory: ros_ws
         run: |
+          # gflags is required by drake_cmake_installed
+          apt-get update && apt-get install -y libgflags-dev
           . /opt/ros/rolling/setup.bash
           . install/setup.bash
-          cat /home/runner/work/ros-drake-vendor/ros-drake-vendor/ros_ws/install/share/drake/cmake/drake-extras.cmake
-          colcon graph
-          colcon build --merge-install --packages-select drake_cmake_installed drake_cmake_installed_apt drake_ament_cmake_installed --event-handlers=console_direct+ --cmake-args --trace-expand --trace-source=/home/runner/work/ros-drake-vendor/ros-drake-vendor/ros_ws/install/share/drake/cmake/drake-extras.cmake 
+          colcon build --merge-install --packages-select drake_cmake_installed drake_cmake_installed_apt drake_ament_cmake_installed --event-handlers=console_direct+