diff --git a/.github/workflows/ci-osx-arm64-conda.yml b/.github/workflows/ci-osx-arm64-conda.yml
deleted file mode 100644
index 81b935b3a..000000000
--- a/.github/workflows/ci-osx-arm64-conda.yml
+++ /dev/null
@@ -1,88 +0,0 @@
-name: CI - OSX ARM64 - Conda
-
-on:
-  push:
-  pull_request:
-
-env:
-  PYTHONPATH: ${CONDA_PREFIX}/lib/python3.8/site-packages/
-
-jobs:
-  build-with-conda:
-    name: '[conda:${{ matrix.os }}:${{ matrix.build_type }}]'
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        build_type: [Release, Debug]
-        name: [macos-m1]
-
-        include:
-          - name: macos-m1
-            os: self-hosted-arm64
-
-    steps:
-    - uses: actions/checkout@v2
-
-    # not working due to The node12 is not supported on macOS ARM64 platform. Use node16 instead.
-    # open issue https://github.com/conda-incubator/setup-miniconda/issues/247
-    # - uses: conda-incubator/setup-miniconda@v2
-    #   with:
-    #     activate-environment: proxarm
-
-    - name: Environment
-      shell: bash -l {0}
-      run: |
-        echo $CONDA_PREFIX
-        conda info
-        conda list
-        env
-
-    - name: Configure
-      shell: bash -l {0}
-      run: |
-        cd $GITHUB_WORKSPACE
-        git submodule update --init
-        mkdir build
-        cd build
-        cmake .. -GNinja -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DCMAKE_INSTALL_PREFIX=${CONDA_PREFIX} -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} -DBUILD_PYTHON_INTERFACE:BOOL=ON -DBUILD_WITH_VECTORIZATION_SUPPORT:BOOL=OFF -DPYTHON_SITELIB=${CONDA_PREFIX}/Lib/site-packages -DPYTHON_EXECUTABLE=${CONDA_PYTHON_EXE} -DBUILD_DOCUMENTATION:BOOL=ON -DINSTALL_DOCUMENTATION:BOOL=ON -DTEST_JULIA_INTERFACE:BOOL=OFF
-
-    - name: Build
-      shell: bash -l {0}
-      run: |
-        cd $GITHUB_WORKSPACE/build
-        cmake --build . --config ${{ matrix.build_type }} -v
-
-    - name: Install
-      shell: bash -l {0}
-      run: |
-        cd $GITHUB_WORKSPACE/build
-        cmake --install . --config ${{ matrix.build_type }}
-
-
-    - name: Test
-      shell: bash -l {0}
-      run: |
-        cd $GITHUB_WORKSPACE/build
-        ctest --output-on-failure -C ${{ matrix.build_type }}
-
-
-    - name: Uninstall [Conda]
-      shell: bash -l {0}
-      run: |
-        cd $GITHUB_WORKSPACE/build
-        cmake --build . --config ${{ matrix.build_type }} --target uninstall
-
-  check:
-    if: always()
-    name: check-ci-osx-arm64-conda
-
-    needs:
-    - build-with-conda
-
-    runs-on: Ubuntu-latest
-    steps:
-    - name: Decide whether the needed jobs succeeded or failed
-      uses: re-actors/alls-green@release/v1
-      with:
-        jobs: ${{ toJSON(needs) }}
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