diff --git a/.github/workflows/seo-report.yaml b/.github/workflows/seo-report.yaml
index 4291c41..6f26359 100644
--- a/.github/workflows/seo-report.yaml
+++ b/.github/workflows/seo-report.yaml
@@ -34,9 +34,12 @@ jobs:
       - name: Get Deployment Source Branch Name
         id: git-branch
         run: |
+          commit_sha=$(curl -s -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+            "https://api.github.com/repos/${{ github.repository }}/deployments/${{ github.event.deployment.id }}" \
+            | jq -r '.sha')
           branch=$(curl -s -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
-          "https://api.github.com/repos/${{ github.repository }}/deployments/${{ github.event.deployment.id }}" \
-          | jq -r '.ref' | cut -d "/" -f 3-)
+            "https://api.github.com/repos/${{ github.repository }}/commits/$commit_sha" \
+            | jq -r '.ref' | sed 's/refs\/heads\///')
           echo "Source branch of deployment: $branch"
           echo "SOURCE_REF=$branch" >> "$GITHUB_ENV"