diff --git a/examples/dynamic_update_no_recompute.py b/examples/dynamic_update_no_recompute.py
index 6ab70fb..761375d 100644
--- a/examples/dynamic_update_no_recompute.py
+++ b/examples/dynamic_update_no_recompute.py
@@ -43,7 +43,11 @@ from apps.chunking import create_text_chunks
 REPO_ROOT = Path(__file__).resolve().parents[1]
 
 DEFAULT_QUERY = "What's LEANN?"
-DEFAULT_INITIAL_FILES = [REPO_ROOT / "data" / "2501.14312v1 (1).pdf"]
+DEFAULT_INITIAL_FILES = [
+    REPO_ROOT / "data" / "2501.14312v1 (1).pdf",
+    REPO_ROOT / "data" / "huawei_pangu.md",
+    REPO_ROOT / "data" / "PrideandPrejudice.txt",
+]
 DEFAULT_UPDATE_FILES = [REPO_ROOT / "data" / "2506.08276v1.pdf"]
 
 
diff --git a/packages/leann-backend-hnsw/third_party/faiss b/packages/leann-backend-hnsw/third_party/faiss
index ed96ff7..1d51f0c 160000
--- a/packages/leann-backend-hnsw/third_party/faiss
+++ b/packages/leann-backend-hnsw/third_party/faiss
@@ -1 +1 @@
-Subproject commit ed96ff7dbaea0562b994f8ce7823af41884b1010
+Subproject commit 1d51f0c07420808a18f85a4db6636fd25e4a1daa
diff --git a/packages/leann-core/src/leann/api.py b/packages/leann-core/src/leann/api.py
index e90c305..bf25666 100644
--- a/packages/leann-core/src/leann/api.py
+++ b/packages/leann-core/src/leann/api.py
@@ -730,6 +730,7 @@ class LeannBuilder:
         index = faiss.read_index(str(index_file))
         if hasattr(index, "is_recompute"):
             index.is_recompute = needs_recompute
+            print(f"index.is_recompute: {index.is_recompute}")
         if getattr(index, "storage", None) is None:
             if index.metric_type == faiss.METRIC_INNER_PRODUCT:
                 storage_index = faiss.IndexFlatIP(index.d)
@@ -818,7 +819,12 @@ class LeannBuilder:
                             f"{actual_port}; expected {requested_zmq_port}. Make sure the desired ZMQ port is free."
                         )
 
-                index.add(embeddings.shape[0], faiss.swig_ptr(embeddings))
+                if needs_recompute:
+                    for i in range(embeddings.shape[0]):
+                        print(f"add {i} embeddings")
+                        index.add(1, faiss.swig_ptr(embeddings[i : i + 1]))
+                else:
+                    index.add(embeddings.shape[0], faiss.swig_ptr(embeddings))
                 faiss.write_index(index, str(index_file))
             finally:
                 if server_started and server_manager is not None: