diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a1da332..0ecfa5e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,7 +49,7 @@ jobs:
 
       - name: Mypy cache
         if: matrix.python_version == env.MAIN_PYTHON_VERSION
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .mypy_cache
           key: mypy-${{ runner.os }}-python-${{ matrix.python_version }}-${{ github.sha }}