diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ce4659e..6172766 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,11 +48,11 @@ jobs:
         uses: gabrielfalcao/pyenv-action@v18
         with:
           default: "${{ join(matrix.python-version, '.') }}"
-          command: pip install -U tox
       - name: Run Unit Tests
         run: |
           alias python="${{ steps.pyenv.outputs.pyenv_root }}/versions/${{ join(matrix.python-version, '.') }}/bin/python"
           python -V
+          python -mensurepip -U
           python -mpip install -U tox
           python -mtox -epy${{ matrix.python-version[0] }}${{ matrix.python-version[1] }} -- -vvs
   unit-tests: