diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cc0ee67..a293b11 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -160,10 +160,10 @@ jobs:
     - name: Build C extension
       run: arch -x86_64 pip install -vv -e . --no-build-isolation
     - name: Install test requirements
-      run: python -m pip install -r src/pyhmmer/tests/requirements.txt
+      run: arch -x86_64 python -m pip install -r src/pyhmmer/tests/requirements.txt
       if: matrix.python-impl == 'CPython'
     - name: Test with coverage
-      run: python -m coverage run -m unittest pyhmmer.tests -vv
+      run: arch -x86_64 python -m coverage run -m unittest pyhmmer.tests -vv
     - name: Upload to Codecov
       uses: codecov/codecov-action@v4
       if: matrix.python-impl == 'CPython'