diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2fd7ae1..fb3c52d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -27,7 +27,7 @@ jobs:
         run: ruff check .
 
       - name: Cache mypy
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: .mypy_cache
           key: mypy-${{ runner.os }}-py3.14-${{ hashFiles('requirements*.txt') }}