diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 4183139..c7f51a5 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -24,6 +24,7 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+        cache: pip
     - name: Install tox
       run: pip install tox
     - name: Run tox
diff --git a/requirements.txt b/requirements.txt
index 1ae3ec6..02cff76 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
+tox
 flake8
\ No newline at end of file