diff --git a/.github/workflows/unittest.yaml b/.github/workflows/unittest.yaml
index 6cb9cc411..564a5e7c9 100644
--- a/.github/workflows/unittest.yaml
+++ b/.github/workflows/unittest.yaml
@@ -26,6 +26,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        cache: 'pip'
     - name: Install dependencies
       run: |
         sh tests/scripts/run_install_deps.sh