diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 123e03987..f12c7653f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
         sys:
         - {compiler: gcc, version: '11', name: c++17, flags: -DCPP17=ON}
         - {compiler: clang, version: '15', name: assert, flags: -DXTENSOR_ENABLE_ASSERT=ON}
-        - {compiler: clang, version: '16', name: column-major, flags: -DDEFAULT_COLUMN_MAJOR=ON}
+        - {compiler: clang, version: '15', name: column-major, flags: -DDEFAULT_COLUMN_MAJOR=ON}
 
     defaults:
       run:
diff --git a/.github/workflows/ci_extended.yaml b/.github/workflows/ci_extended.yaml
index ee4083707..92a7de316 100644
--- a/.github/workflows/ci_extended.yaml
+++ b/.github/workflows/ci_extended.yaml
@@ -54,52 +54,6 @@ jobs:
       working-directory: build
       run: cmake --install .
 
-    - name: Build
-      working-directory: build
-      run: cmake --build .
-
-    - name: Run tests
-      working-directory: build
-      run: ctest --output-on-failure
-
-  clang:
-
-    strategy:
-      fail-fast: false
-      matrix:
-        runs-on: [windows-latest]
-
-    defaults:
-      run:
-        shell: bash -l {0}
-
-    name: ${{ matrix.runs-on }} • clang - default
-    runs-on: ${{ matrix.runs-on }}
-    steps:
-
-    - name: Setup clang
-      run: |
-        echo "CC=clang" >> $GITHUB_ENV
-        echo "CXX=clang++" >> $GITHUB_ENV
-
-    - name: Checkout code
-      uses: actions/checkout@v3
-
-    - name: Set conda environment
-      uses: mamba-org/provision-with-micromamba@main
-      with:
-        environment-name: myenv
-        environment-file: environment-dev.yml
-        extra-specs: |
-          sel(win): ninja
-
-    - name: Configure using CMake
-      run: cmake -Bbuild -DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX -DBUILD_TESTS=ON -G Ninja ${{ matrix.sys.flags }}
-
-    - name: Install
-      working-directory: build
-      run: cmake --install .
-
     - name: Build
       working-directory: build
       run: cmake --build . --target test_xtensor_lib --parallel 8