diff --git a/.github/workflows/ci_np2.yml b/.github/workflows/ci_np2.yml
index 3abceac3..993c3bbb 100644
--- a/.github/workflows/ci_np2.yml
+++ b/.github/workflows/ci_np2.yml
@@ -23,7 +23,7 @@ jobs:
         echo $CONDA/bin >> $GITHUB_PATH
     - name: Install dependencies
       run: |
-        conda install --solver=classic conda-forge::conda-libmamba-solver conda-forge::libmamba conda-forge::libmambapy conda-forge::libarchive
+        conda install conda-forge::libmamba conda-forge::libmambapy conda-forge::libarchive
         conda install -c numba numba=0.61.0rc1
         conda env update --file environment_np2.yml --name base
     - name: Conda info