diff --git a/examples/faiss_only.py b/examples/faiss_only.py
index 28d9db6..231e0d2 100644
--- a/examples/faiss_only.py
+++ b/examples/faiss_only.py
@@ -37,7 +37,7 @@ def main():
         import faiss
     except ImportError:
         print("Faiss is not installed.")
-        print("Please install it with `uv pip install faiss-cpu`")
+        print("Please install it with `uv pip install faiss-cpu` and you can  then run this script again")
         sys.exit(1)
 
     from llama_index.core import (
diff --git a/packages/leann-backend-diskann/third_party/DiskANN b/packages/leann-backend-diskann/third_party/DiskANN
index 25339b0..af2a264 160000
--- a/packages/leann-backend-diskann/third_party/DiskANN
+++ b/packages/leann-backend-diskann/third_party/DiskANN
@@ -1 +1 @@
-Subproject commit 25339b03413b5067c25b6092ea3e0f77ef8515c8
+Subproject commit af2a26481e65232b57b82d96e68833cdee9f7635
diff --git a/packages/leann-backend-hnsw/leann_backend_hnsw/hnsw_backend.py b/packages/leann-backend-hnsw/leann_backend_hnsw/hnsw_backend.py
index 0aa903e..a61a169 100644
--- a/packages/leann-backend-hnsw/leann_backend_hnsw/hnsw_backend.py
+++ b/packages/leann-backend-hnsw/leann_backend_hnsw/hnsw_backend.py
@@ -92,8 +92,8 @@ class HNSWBuilder(LeannBackendBuilderInterface):
 
         if success:
             logger.info("✅ CSR conversion successful.")
-            index_file_old = index_file.with_suffix(".old")
-            shutil.move(str(index_file), str(index_file_old))
+            # index_file_old = index_file.with_suffix(".old")
+            # shutil.move(str(index_file), str(index_file_old))
             shutil.move(str(csr_temp_file), str(index_file))
             logger.info(
                 f"INFO: Replaced original index with {mode_str} version at '{index_file}'"