diff --git a/.github/workflows/Testbase.yml b/.github/workflows/Testbase.yml
index 90187d86..bde809a1 100644
--- a/.github/workflows/Testbase.yml
+++ b/.github/workflows/Testbase.yml
@@ -25,7 +25,7 @@ jobs:
           python-version: ${{ inputs.python }}
       - name: Install package
         run: |
-          sudo apt install libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xfixes0 x11-utils
+          sudo apt install libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xfixes0 x11-utils libgl1
           python -m pip install --upgrade pip
           export QT_DEBUG_PLUGINS=1
           pip install flake8 pytest pytest-cov pytest-qt pytest-xdist pytest-xvfb setuptools wheel numpy h5py ${{ inputs.qt5 }}