diff --git a/packages/leann-backend-diskann/third_party/DiskANN b/packages/leann-backend-diskann/third_party/DiskANN
index af2a264..81666b7 160000
--- a/packages/leann-backend-diskann/third_party/DiskANN
+++ b/packages/leann-backend-diskann/third_party/DiskANN
@@ -1 +1 @@
-Subproject commit af2a26481e65232b57b82d96e68833cdee9f7635
+Subproject commit 81666b775822c20f1aedf1bcf2767bdf54681513