diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index d0834a3..007a9a7 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -45,7 +45,7 @@ jobs:
           pip install -U setuptools
           python -m pip install -U pip
       - name: cache mypy
-        uses: actions/cache@v3.3.2
+        uses: actions/cache@v4.0.0
         with:
           path: ./.mypy_cache
           key: mypy|${{ matrix.python }}|${{ hashFiles('pyproject.toml') }}