diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 57a49108f..ed546b60e 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -189,12 +189,12 @@ jobs:
     displayName: 'Install requirements'
   - script: |
       set PATH=%PATH%;%GeckoWebDriver%
-      python -m pytest -vv --runslow --runselenium --doctest-modules --junitxml=junit/test-results.xml --cov=com --cov-report=xml --cov-report=html
+      python -m pytest -vv -n auto --runslow --runselenium --doctest-modules --junitxml=junit/test-results.xml --cov=com --cov-report=xml --cov-report=html
     workingDirectory: python
     condition: in(variables['image.name'], 'windows-2019')
     displayName: 'Run pytest (Windows)'
   - script: |
-      python -m pytest -vv --runslow --doctest-modules --junitxml=junit/test-results.xml --cov=com --cov-report=xml --cov-report=html
+      python -m pytest -vv -n auto --runslow --doctest-modules --junitxml=junit/test-results.xml --cov=com --cov-report=xml --cov-report=html
     workingDirectory: python
     condition: in(variables['image.name'], 'ubuntu-16.04', 'macOS-10.13')
     displayName: 'Run pytest (Non-Windows)'