diff --git a/pyproject.toml b/pyproject.toml
index 5b05fbc9f681cce08c79836d4a6acb8d0a22a088..d7fba4d03e7b589733c5c9b265ec6f36bf653ab1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "semantic-router"
-version = "0.0.50"
+version = "0.0.51"
 description = "Super fast semantic router for AI decision making"
 authors = [
     "James Briggs <james@aurelio.ai>",
diff --git a/semantic_router/index/qdrant.py b/semantic_router/index/qdrant.py
index 165a4c93ce2662a9ede4a1d41c4ac34f26b1a218..f3a6bbf2986db45355ac3c7a418dabb6394fbfb7 100644
--- a/semantic_router/index/qdrant.py
+++ b/semantic_router/index/qdrant.py
@@ -165,8 +165,11 @@ class QdrantIndex(BaseIndex):
         embeddings: List[List[float]],
         routes: List[str],
         utterances: List[str],
+        sync: bool = False,
         batch_size: int = DEFAULT_UPLOAD_BATCH_SIZE,
     ):
+        if sync:
+            raise NotImplementedError("Sync add is not implemented for QdrantIndex")
         self.dimensions = self.dimensions or len(embeddings[0])
         self._init_collection()