diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index 11d1462..26b1724 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -19,11 +19,15 @@ on:
 
 jobs:
   test:
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+    env:
+      # Display must be available globally for linux to know where xvfb is
+      DISPLAY: ":99.0"
+      QT_SELECT: "qt6"
 
     steps:
     - uses: actions/checkout@v5
@@ -38,6 +42,15 @@ jobs:
         cache: "poetry"
         cache-dependency-path: poetry.lock
 
+    - name: Install system dependencies
+      run: |
+        sudo apt-get update
+        # from https://stackoverflow.com/questions/60692711
+        sudo apt-get install -y xvfb libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xinput0 libxcb-xfixes0 libxcb-shape0 libglib2.0-0 libgl1-mesa-dev
+        sudo apt-get install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev
+        # start xvfb in the background
+        sudo /usr/bin/Xvfb $DISPLAY -screen 0 1280x1024x24 &
+
     - name: Install dependencies
       run: poetry install --without docs