diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5f963a5..05faa08 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,7 +33,7 @@ jobs:
           echo "::set-output name=dir::$(pip cache dir)"
 
       - name: pip cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ hashFiles('**/pyproject.toml') }}