diff --git a/.gitea/workflows/poll-upstream.yml b/.gitea/workflows/poll-upstream.yml
index 6dcdb9b..7e032b2 100644
--- a/.gitea/workflows/poll-upstream.yml
+++ b/.gitea/workflows/poll-upstream.yml
@@ -50,6 +50,6 @@ jobs:
           curl --silent --show-error --location \
             --request POST \
             --header "Authorization: token ${{ secrets.DISPATCH_TOKEN }}" \
-            --header 'Accept: application/json' \
+            --header 'Content-Type: application/json' \
             --url "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/workflows/build-release.yml/dispatches" \
-            --data "{\"ref\":\"main\",\"inputs\":{\"tag\":\"${{ steps.upstream.outputs.tag }}\"}}"
+            --data "{\"ref\":\"refs/heads/main\",\"inputs\":{\"tag\":\"${{ steps.upstream.outputs.tag }}\"}}"