diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index d8d0a3a2..e832b0fb 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -43,7 +43,7 @@ jobs:
           cache: 'pip'
           cache-dependency-path: 'requirements/*.txt'
       - name: cache mypy
-        uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
         with:
           path: ./.mypy_cache
           key: mypy|${{ matrix.python }}|${{ hashFiles('pyproject.toml') }}