diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 998ad5c9110..34dcb58e73c 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -84,11 +84,11 @@ stages:
   #                                                  Signed build                                                     #
   #-------------------------------------------------------------------------------------------------------------------#
   - ${{ if and(ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
-    - ${{ 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: fsharp
-          MirrorBranch: release/dev17.3
+          MirrorBranch: release/dev17.4
           LclSource: lclFilesfromPackage
           LclPackageId: 'LCL-JUNO-PROD-FSHARP'
     - template: /eng/common/templates/jobs/jobs.yml