diff --git a/.github/workflows/conda-package.yml b/.github/workflows/conda-package.yml
index ad0eecc..703422f 100644
--- a/.github/workflows/conda-package.yml
+++ b/.github/workflows/conda-package.yml
@@ -103,9 +103,11 @@ jobs:
           fetch-depth: 0
       - uses: conda-incubator/setup-miniconda@835234971496cad1653abb28a638a281cf32541f # v3.2.0
         with:
-          conda-remove-defaults: true
-          auto-activate-base: true
-          activate-environment: ""
+          miniforge-version: latest
+          use-mamba: 'true'
+          conda-remove-defaults: 'true'
+          activate-environment: 'build'
+          python-version: '3.13' # no python 3.14 support by conda-build
 
       - name: Cache conda packages
         uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
@@ -122,13 +124,10 @@ jobs:
       - name: Install conda-build
         run: conda install conda-build
 
-      - name: Setup MSVC
-        uses: ilammy/msvc-dev-cmd@0b201ec74fa43914dc39ae48a89fd1d8cb592756 # v1.13.0
-
       - name: Store conda paths as envs
         shell: bash -el {0}
         run: |
-          echo "CONDA_BLD=C:\\Miniconda\\conda-bld\\win-64\\" >> $GITHUB_ENV
+          echo "CONDA_BLD=$CONDA_PREFIX\\conda-bld\\win-64\\" >> $GITHUB_ENV
           echo "WHEELS_OUTPUT_FOLDER=$GITHUB_WORKSPACE\\" >> $GITHUB_ENV
 
       - name: Build conda package
@@ -240,18 +239,21 @@ jobs:
           name: ${{ env.PACKAGE_NAME }} ${{ runner.os }} Python ${{ matrix.python }}
       - uses: conda-incubator/setup-miniconda@835234971496cad1653abb28a638a281cf32541f # v3.2.0
         with:
-          conda-remove-defaults: true
-          auto-activate-base: true
-          activate-environment: ""
+          miniforge-version: latest
+          use-mamba: 'true'
+          conda-remove-defaults: 'true'
+          activate-environment: 'test'
+          python-version: '3.13' # no python 3.14 support by conda-index
 
-      - name: Install conda-build
-        run: conda install conda-build
+      - name: Install conda-index
+        run: conda install conda-index
 
       - name: Create conda channel
         run: |
           mkdir ${{ env.GITHUB_WORKSPACE }}\channel\win-64
           move ${{ env.PACKAGE_NAME }}-*.conda ${{ env.GITHUB_WORKSPACE }}\channel\win-64
-          conda index ${{ env.GITHUB_WORKSPACE }}/channel
+          python -m conda_index ${{ env.GITHUB_WORKSPACE }}/channel
+
           # Test channel
           conda search ${{ env.PACKAGE_NAME }} -c ${{ env.GITHUB_WORKSPACE }}/channel --override-channels --info --json > ${{ env.GITHUB_WORKSPACE }}\ver.json
           more ${{ env.GITHUB_WORKSPACE }}\ver.json