diff --git a/.github/workflows/qt6-tests.yml b/.github/workflows/qt6-tests.yml
index 54c17470..2dda6cff 100644
--- a/.github/workflows/qt6-tests.yml
+++ b/.github/workflows/qt6-tests.yml
@@ -66,7 +66,7 @@ jobs:
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install pyfakefs PySide6 vermin requests || true
+          pip install pyfakefs "PySide6<6.11" vermin requests || true
 
       - name: Run App tests
         run: |