diff --git a/appveyor.yml b/appveyor.yml
index 078ce21f..fb39dec3 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -64,10 +64,10 @@ test_script:
   - IF "%APPVEYOR_REPO_TAG%" == "false" (python -m pytest -v -s)
 
 after_test:
-  - IF "%APPVEYOR_REPO_TAG%" == "true" (pip install wheel twine cx_freeze!=5.1 six appdirs packaging pyaudio)
+  - IF "%APPVEYOR_REPO_TAG%" == "true" (pip install wheel twine six appdirs packaging pyaudio)
   - IF "%APPVEYOR_REPO_TAG%" == "true" (python -c "import tempfile, os; open(os.path.join(tempfile.gettempdir(), 'urh_releasing'), 'w').close()")
   - IF "%APPVEYOR_REPO_TAG%" == "true" (python setup.py bdist_wheel)
-  - IF "%APPVEYOR_REPO_TAG%" == "true" (IF "%PYTHON_VERSION%" == "3.6.x" (python data\build_cx.py))
+  - IF "%APPVEYOR_REPO_TAG%" == "true" (IF "%PYTHON_VERSION%" == "3.6.x" (pip install cx_freeze & python data\build_cx.py))
   - IF "%APPVEYOR_REPO_TAG%" == "true" (dir dist)
 
 artifacts: