diff --git a/.github/workflows/build-and-publish.yml b/.github/workflows/build-and-publish.yml
index d0a74a0..dd1a5d7 100644
--- a/.github/workflows/build-and-publish.yml
+++ b/.github/workflows/build-and-publish.yml
@@ -90,7 +90,7 @@ jobs:
       - name: Build wheel
         run: |
           cd packages/leann-backend-hnsw
-          uv build --wheel
+          uv build --wheel --python python
           
       - name: Repair wheel (Linux)
         if: runner.os == 'Linux'
@@ -167,7 +167,7 @@ jobs:
       - name: Build wheel
         run: |
           cd packages/leann-backend-diskann
-          uv build --wheel
+          uv build --wheel --python python
           
       - name: Repair wheel (Linux)
         if: runner.os == 'Linux'
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a5436ff..9aa4b72 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -55,12 +55,17 @@ jobs:
           echo "🔨 Building on ${{ matrix.os }} with Python ${{ matrix.python-version }}..."
           export UV_SYSTEM_PYTHON=1
           
+          # Verify Python version
+          python --version
+          which python
+          
           # Build each package
           for pkg in leann-core leann-backend-hnsw leann-backend-diskann leann; do
             echo "Building $pkg..."
             cd packages/$pkg
             rm -rf dist/ build/ _skbuild/
-            uv build --wheel
+            # Use explicit python interpreter
+            uv build --wheel --python python
             if [ ! -f dist/*.whl ]; then
               echo "❌ Failed to build $pkg!"
               exit 1