diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index e28f5b54627b..df022b431dec 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -17,6 +17,7 @@ jobs:
           git config --global core.autocrlf false
           git config --global core.symlinks true
         displayName: 'Preserve LF endings and symbolic links on check out'
+      - script: npm install -g yarn@1.9.4
       - template: .azure-pipelines-steps.yml
 
   - job: macOS