diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 1e9ab4a..555b3de 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -41,7 +41,7 @@ jobs:
         id: pip-cache
         run: echo "::set-output name=dir::$(pip cache dir)"
       - name: cache pip
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           key: pip|${{ runner.os }}|${{ matrix.python }}|${{ hashFiles('setup.py') }}|${{ hashFiles('requirements/*.txt') }}