diff --git a/.github/workflows/test-windows-mamba.yml b/.github/workflows/test-windows-mamba.yml
deleted file mode 100644
index b60fa062f..000000000
--- a/.github/workflows/test-windows-mamba.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: Test with Windows, Mamba
-
-on: [push]
-
-jobs:
-  build:
-    runs-on: windows-latest
-    strategy:
-      max-parallel: 5
-      fail-fast: false
-      matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12']
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python from Miniconda
-      uses: conda-incubator/setup-miniconda@v2.2.0
-      with:
-        miniconda-version: latest
-        channels: conda-forge,defaults
-        channel-priority: true
-        activate-environment: anaconda-client-env
-        python-version: ${{ matrix.python-version }}
-    - name: Install conda dependencies
-      run: |
-        printenv
-        conda install -y -c conda-forge python=${{ matrix.python-version }} "numpy>=1.23" "scipy>=1.8" "matplotlib>=3.6" "h5py>=3.5" "wxpython>=4.2" scikit-image scikit-learn pandas jupyter plotly pyparsing pytest pytest-cov coverage
-    - name: Install xraylarch and other dependencies with pip
-      run: |
-        printenv
-        pip install ".[all]"
-    - name: Run test suite
-      run: |
-        cd tests
-        python -m pytest