diff --git a/src/apps/competitions/tasks.py b/src/apps/competitions/tasks.py
index eeaa2ffae..07acb270a 100644
--- a/src/apps/competitions/tasks.py
+++ b/src/apps/competitions/tasks.py
@@ -366,7 +366,7 @@ def mark_status_as_failed_and_delete_dataset(competition_creation_status, detail
             try:
                 with NamedTemporaryFile(mode="w+b") as temp_file:
                     logger.info(f"Download competition bundle: {competition_dataset.data_file.name}")
-                    competition_bundle_url = make_url_sassy(competition_dataset.data_file.url)
+                    competition_bundle_url = make_url_sassy(competition_dataset.data_file.name)
                     try:
                         with requests.get(competition_bundle_url, stream=True) as r:
                             r.raise_for_status()
diff --git a/version.json b/version.json
index fd7e5531e..c817aa11d 100644
--- a/version.json
+++ b/version.json
@@ -1,5 +1,5 @@
 {
-  "tag_name": "v1.27.1",
-  "release_name": "v1.27.1",
-  "html_url": "https://github.com/codalab/codabench/releases/tag/v1.27.1"
+  "tag_name": "v1.28",
+  "release_name": "v1.28",
+  "html_url": "https://github.com/codalab/codabench/releases/tag/v1.28"
 }