diff --git a/.github/workflows/documentation.yaml b/.github/workflows/documentation.yaml
index d83cf12..baaa1ab 100644
--- a/.github/workflows/documentation.yaml
+++ b/.github/workflows/documentation.yaml
@@ -22,7 +22,9 @@ jobs:
           cache: true
           python-version: '3.10'
       - name: Install dependencies
-        run: pdm sync -dG doc -dG pyqt5
+        run: pdm sync -dG doc
+      - name: Install PyQt5
+        run: pip install PyQt5
       - name: Install GraphViz
         run: sudo apt-get install -y graphviz
       - name: Sphinx build