diff --git a/.github/workflows/template-check-version.yml b/.github/workflows/template-check-version.yml
index b5ef426..944149f 100644
--- a/.github/workflows/template-check-version.yml
+++ b/.github/workflows/template-check-version.yml
@@ -22,21 +22,20 @@ jobs:
         with:
           ref: "latest"  # This avoids comparing against development versions.
 
-      - name: Setup pixi
-        uses: prefix-dev/setup-pixi@v0.8.3
+      - uses: mamba-org/setup-micromamba@v2
+        with:
+          environment-name: ${{ github.event.repository.name }}-copier
+          create-args: copier python=3.12
+          post-cleanup: all
+          cache-environment: true
 
-      - name: Add copier, install it, and stash to avoid 'dirty' copier warnings
-        run: |
-          pixi add copier
-          pixi install
-          git stash push -m "Stash pixi lock and toml" -- pixi.lock pixi.toml
       - name: Add dummy GitHub credentials
         run: |
           git config --global user.name Copier update
           git config --global user.email check@dummy.bot.com
 
       - name: Run copier update
-        run: pixi run copier update --skip-answered --defaults
+        run: copier update --skip-answered --defaults
 
       - name: Check for template changes
         run: test -z "$(git status --porcelain)" || echo "UPDATE=true" >> $GITHUB_ENV
diff --git a/template/tests/clio_test.py.jinja b/template/tests/clio_test.py.jinja
index 5fe141b..fcd4971 100644
--- a/template/tests/clio_test.py.jinja
+++ b/template/tests/clio_test.py.jinja
@@ -40,7 +40,7 @@ def test_standard_file_existance(module_path, file):
 def test_snakemake_all_failure(module_path):
     """The snakemake 'all' rule should return an error by default."""
     process = subprocess.run(
-        "snakemake", shell=True, cwd=module_path, capture_output=True
+        "snakemake --cores 4", shell=True, cwd=module_path, capture_output=True
     )
     assert "INVALID (missing locally)" in str(process.stderr)
 
@@ -48,7 +48,7 @@ def test_snakemake_all_failure(module_path):
 def test_snakemake_integration_testing(module_path):
     """Run a light-weight test simulating someone using this module."""
     assert subprocess.run(
-        "snakemake --use-conda",
+        "snakemake --use-conda --cores 4",
         shell=True,
         check=True,
         cwd=module_path / "tests/integration",