diff --git a/.github/workflows/merge-acm-flow.yaml b/.github/workflows/merge-acm-flow.yaml
index e7d2b1a..746f9e7 100644
--- a/.github/workflows/merge-acm-flow.yaml
+++ b/.github/workflows/merge-acm-flow.yaml
@@ -18,7 +18,7 @@ on:
       downstream-branch:
         description: Downstream branch to create PR
         required: false
-        default: release-2.17
+        default: release-5.0
         type: string
       sandbox:
         description: Sandbox repo path in owner/repo format. Used as a base to create PR against downstream.