diff --git a/tools/run_tests/artifacts/build_artifact_python.bat b/tools/run_tests/artifacts/build_artifact_python.bat
index e160a101228..c946cd98061 100644
--- a/tools/run_tests/artifacts/build_artifact_python.bat
+++ b/tools/run_tests/artifacts/build_artifact_python.bat
@@ -47,7 +47,7 @@ python setup.py bdist_wheel || goto :error
 popd
 
 @rem Ensure the generate artifacts are valid.
-pip install twine
+python -m pip install twine
 python -m twine check dist\* tools\distrib\python\grpcio_tools\dist\* || goto :error
 
 xcopy /Y /I /S dist\* %ARTIFACT_DIR% || goto :error