diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index d782900..6c7c63b 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -402,7 +402,7 @@ jobs:
 
           curl -X POST "${GITEA_API_URL}/repos/${GITEA_USER1}/${GITEA_REPO1}/releases/${{ env.RELEASE_ID }}/assets?name=${FILE_NAME}" \
             -H "Authorization: token a94110b4fa993133ceb0e04fdabfd70626e02405" \
-            -H "Content-Type: application/zip" \
+            -H "Content-Type: multipart/form-data" \
             --data-binary @"$ARTIFACT_FILE"
 
       - name: ✅ Done