diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ba49f4f6afeb24c5ff029f799c4a8e26bc8ee15c..02573ee85dc4fd98ff3730099438c9a815370f72 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,12 +25,14 @@ jobs:
       - name: Setup ENV
         uses: conda-incubator/setup-miniconda@3b0f2504dd76ef23b6d31f291f4913fb60ab5ff3
         with:
-          miniconda-version: "latest"
-          activate-environment: knoten
-          environment-file: environment.yml
-          auto-activate-base: false
-          auto-update-conda: true
-          python-version: ${{ matrix.python-version }}
+          miniforge-version: latest  
+          use-mamba: true  
+          channels: conda-forge  
+          activate-environment: ale  
+          environment-file: environment.yml  
+          auto-activate-base: false  
+          auto-update-conda: true  
+          python-version: ${{ matrix.python-version }} 
       - name: Check build environment
         run: |
           conda list