diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d306ce76..b46cf6d4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,6 +25,8 @@ jobs:
       - uses: pre-commit/action@v3.0.0
         with:
           extra_args: --all-files --verbose
+      - name: Mypy check
+        run: bash scripts/mypy.sh
   test:
     name: test on python ${{ matrix.python-version }}
     runs-on: ubuntu-latest