diff --git a/.github/workflows/deployment.yaml b/.github/workflows/deployment.yaml
index 3ad95eb..49226e4 100644
--- a/.github/workflows/deployment.yaml
+++ b/.github/workflows/deployment.yaml
@@ -14,8 +14,9 @@ jobs:
 
     - name: Prepare
       run: |
-        $CONDA/bin/conda install --quiet --yes conda-build anaconda-client
+        $CONDA/bin/conda install --quiet --yes conda-build anaconda-client conda-libmamba-solver
         $CONDA/bin/conda config --append channels conda-forge
+        $CONDA/bin/conda config --set solver libmamba
         $CONDA/bin/conda config --set anaconda_upload yes
 
     - name: Build and upload