diff --git a/azure-pipelines-official.yml b/azure-pipelines-official.yml
index e9370ed019b5a..6ddd80bf12a49 100644
--- a/azure-pipelines-official.yml
+++ b/azure-pipelines-official.yml
@@ -82,11 +82,11 @@ stages:
     demands: ImageOverride -equals windows.vs2022.amd64
 
   jobs:
-  - ${{ if eq(variables['Build.SourceBranch'], 'refs/heads/release/dev17.3') }}:
+  - ${{ if eq(variables['Build.SourceBranch'], 'refs/heads/release/dev17.4') }}:
     - template: /eng/common/templates/job/onelocbuild.yml
       parameters:
         MirrorRepo: roslyn
-        MirrorBranch: release/dev17.3
+        MirrorBranch: release/dev17.4
         LclSource: lclFilesfromPackage
         LclPackageId: 'LCL-JUNO-PROD-ROSLYN'