diff --git a/.github/workflows/code-check.yml b/.github/workflows/code-check.yml
deleted file mode 100644
index 0305de1..0000000
--- a/.github/workflows/code-check.yml
+++ /dev/null
@@ -1,35 +0,0 @@
-name: code check
-
-on:
-  push:
-    branches:
-      - master
-      - develop
-  pull_request:
-    branches:
-      - master
-      - develop
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: [3.9]
-
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v1
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Install dependencies
-        run: |
-          pip install -U pip
-          pip install pipenv
-          pipenv install
-          pipenv install --dev
-      - name: Run code check
-        run: |
-          pipenv run mypy
-          pipenv run lint