diff --git a/.github/workflows/update-pull-request.yml b/.github/workflows/update-pull-request.yml
index 69eaa9128e08..bb50a736e224 100644
--- a/.github/workflows/update-pull-request.yml
+++ b/.github/workflows/update-pull-request.yml
@@ -18,8 +18,9 @@ jobs:
       - name: Agregar remoto del repo oficial
         run: git remote add kube-dash ${{ env.kube_dash_url }}
       - name: Obtener cambios del repo oficial
-        run: git fetch kube-dash "refs/pull/${{ github.event.pull_request.number }}/head"
+        run: git fetch kube-dash "refs/heads/${{ github.event.pull_request.base.ref }}"
       - name: Actualizar rama local
         run: git merge FETCH_HEAD
       - name: Empujar cambios a la rama
         run: git push origin HEAD
+