diff --git a/.github/workflows/unit-test.yaml b/.github/workflows/unit-test.yaml
index c2fcf70a..3b5f8573 100644
--- a/.github/workflows/unit-test.yaml
+++ b/.github/workflows/unit-test.yaml
@@ -70,7 +70,7 @@ jobs:
       #          completion. Make sure to update the key to bust the cache
       #          properly if you make a change that should influence it.
       - name: Load cached Python dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: /srv/venv/
           key: >-