diff --git a/.github/workflows/build-reusable.yml b/.github/workflows/build-reusable.yml
index 99254c8..c8204c8 100644
--- a/.github/workflows/build-reusable.yml
+++ b/.github/workflows/build-reusable.yml
@@ -54,15 +54,15 @@ jobs:
             python: '3.12'
           - os: ubuntu-22.04
             python: '3.13'
-          - os: macos-latest
+          - os: macos-14
             python: '3.9'
-          - os: macos-latest
+          - os: macos-14
             python: '3.10'
-          - os: macos-latest
+          - os: macos-14
             python: '3.11'
-          - os: macos-latest
+          - os: macos-14
             python: '3.12'
-          - os: macos-latest
+          - os: macos-14
             python: '3.13'
           - os: macos-13
             python: '3.9'
diff --git a/packages/leann-backend-diskann/CMakeLists.txt b/packages/leann-backend-diskann/CMakeLists.txt
deleted file mode 100644
index a02185e..0000000
--- a/packages/leann-backend-diskann/CMakeLists.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-# packages/leann-backend-diskann/CMakeLists.txt (simplified version)
-
-cmake_minimum_required(VERSION 3.20)
-project(leann_backend_diskann_wrapper)
-
-# Tell CMake to directly enter the DiskANN submodule and execute its own CMakeLists.txt
-# DiskANN will handle everything itself, including compiling Python bindings
-add_subdirectory(third_party/DiskANN)