diff --git a/.github/workflows/test_linux_3.9.yml b/.github/workflows/test_linux_3.9.yml
index 905edb6f..c1e7ab1c 100644
--- a/.github/workflows/test_linux_3.9.yml
+++ b/.github/workflows/test_linux_3.9.yml
@@ -19,6 +19,7 @@ jobs:
         run: |
           sudo apt update
           sudo apt install libenchant-dev qt5-default
+          sudo apt install libxml2-dev libxslt-dev python-dev
       - name: Checkout Source
         uses: actions/checkout@v2
       - name: Install Dependencies