diff --git a/src/database/utils.py b/src/database/utils.py
index 97db200..9a08025 100644
--- a/src/database/utils.py
+++ b/src/database/utils.py
@@ -79,7 +79,7 @@ def upsert_annotations(
         "name": vis_com_name
     }
     update = {
-        "annotation": annotations.model_dump()
+        "$set": { "annotation": annotations.model_dump() }
     }
     res = collection.update_one(
         filter=query,