diff --git a/.github/workflows/milestones.yml b/.github/workflows/milestones.yml
index 41831313c2b..5a9ce8aa0e6 100644
--- a/.github/workflows/milestones.yml
+++ b/.github/workflows/milestones.yml
@@ -47,7 +47,7 @@ jobs:
             gh api \
               -H "Accept: application/vnd.github.raw" \
               -H "X-GitHub-Api-Version: 2022-11-28" \
-              "/repos/{owner}/{repo}/contents/include/VERSION?ref=${{ github.sha }}"
+              "/repos/{owner}/{repo}/contents/include/VERSION?ref=${{ github.event.pull_request.base.ref }}"
             echo "EOF"
           } >> "${GITHUB_OUTPUT}"
         env: