diff --git a/.github/workflows/documentation-workflow.yml b/.github/workflows/documentation-workflow.yml
index 1741321d..999af32a 100644
--- a/.github/workflows/documentation-workflow.yml
+++ b/.github/workflows/documentation-workflow.yml
@@ -16,8 +16,9 @@ jobs:
           submodules: recursive
       - name: Create build directory and run CMake
         run: |
+          sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
           sudo apt-get -y update
-          sudo apt-get -y install doxygen graphviz freeglut3-dev qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools qttools5-dev-tools
+          sudo apt-get -y install gcc-13 doxygen graphviz freeglut3-dev qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools qttools5-dev-tools
           mkdir cmake_download_dir
           DOWNLOAD_FILE_COIN=coin-latest-Ubuntu2204-gcc11-x64.tar.gz
           RELEASE_ID=`curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" https://api.github.com/repos/coin3d/coin/releases | jq -r --arg COIN_REPO_TAG_NAME "CI-builds" '.[] | select(.tag_name==$COIN_REPO_TAG_NAME) | .id'`