diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index d95a4d1487d..25849e23d9c 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -106,6 +106,11 @@ jobs:
 
       - run: poetry install --sync
 
+      - uses: actions/cache@v4
+        with:
+          path: .mypy_cache
+          key: mypy-${{ matrix.os.image }}-${{ env.pythonLocation }}-${{ hashFiles('pyproject.toml', 'poetry.lock') }}
+
       - run: poetry run mypy
 
   pytest: