diff --git a/.pipelines/templates/onebranch-windows-build-stage.yml b/.pipelines/templates/onebranch-windows-build-stage.yml
index d6a15b25..e98387e8 100644
--- a/.pipelines/templates/onebranch-windows-build-stage.yml
+++ b/.pipelines/templates/onebranch-windows-build-stage.yml
@@ -48,6 +48,7 @@ stages:
         @echo ##vso[task.setvariable variable=vsmsbuild]%vsmsbuild%
       displayName: 'locate vsdevcmd via vswhere'
 
+    - task: UsePythonVersion@0
     - script: |
         call $(vsdevcmd) -arch=amd64
         set PYTHONPATH=