diff --git a/.appveyor.yml b/.appveyor.yml
index 0c09ced..3611be7 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -25,7 +25,7 @@ init:
   - curl -L https://bintray.com/alby128/py2exe/download_file?file_path=py2exe-0.9.3.0-cp36-none-win32.whl -o py2exe-0.9.3.0-cp36-none-win32.whl
   - pip install py2exe-0.9.3.0-cp36-none-win32.whl
   - del py2exe-0.9.3.0-cp36-none-win32.whl
-  - pip install PySide2
+  - pip install shiboken2==5.12.0 PySide2==5.12.0
   - pip freeze
   
 install: