diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index b4a69307..51cadb9c 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -48,15 +48,13 @@ jobs:
           cache-downloads-key: downloads-${{ needs.date.outputs.date }}
           cache-environment: true
           cache-environment-key: environment-${{ needs.date.outputs.date }}
+          micromamba-version: '2.0.4'
           init-shell: bash
           generate-run-shell: false
       - run: echo "filename=stenv-${{ runner.os }}-${{ runner.arch }}-py${{ matrix.python-version }}-${{ needs.date.outputs.date }}.yaml" >> $GITHUB_OUTPUT
         id: output
       - run: |
           micromamba env export --no-build | grep -v "name:" | grep -v "prefix:" > ${{ steps.output.outputs.filename }}
-          pip freeze > pip_requirements.txt
-          python tools/mamba_export_pip.py ${{ steps.output.outputs.filename }} pip_requirements.txt > mamba_packages.yml
-          mv mamba_packages.yml ${{ steps.output.outputs.filename }}
           cat ${{ steps.output.outputs.filename }}
       - run: pip install pytest
       - run: pytest tests/test_import.py
diff --git a/tools/mamba_export_pip.py b/tools/mamba_export_pip.py
deleted file mode 100644
index 8aed1f3e..00000000
--- a/tools/mamba_export_pip.py
+++ /dev/null
@@ -1,34 +0,0 @@
-import argparse
-import yaml
-from pathlib import Path
-
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser(
-        prog="mamba_export_pip",
-        description="appends the output of `pip freeze` to the end of an existing Mamba YAML exported with `mamba env export`, in the corresponding `pip` section",
-        epilog="this script replicates the functionality of https://github.com/mamba-org/mamba/pull/2104, and will be obsolete when it is merged",
-    )
-
-    parser.add_argument("mamba_export_filename")
-    parser.add_argument("pip_freeze_filename")
-
-    arguments = parser.parse_args()
-
-    mamba_export_filename = Path(arguments.mamba_export_filename)
-    pip_freeze_filename = Path(arguments.pip_freeze_filename)
-
-    with open(mamba_export_filename) as mamba_export_file:
-        mamba_export = yaml.safe_load(mamba_export_file)
-
-    with open(pip_freeze_filename) as pip_freeze_file:
-        pip_freeze = pip_freeze_file.readlines()
-
-    pip_freeze = [
-        requirement.strip()
-        for requirement in pip_freeze
-        if " @ file" not in requirement
-    ]
-
-    mamba_export["dependencies"].append({"pip": pip_freeze})
-
-    print(yaml.dump(mamba_export))