diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b1a718b..49adb5d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -195,20 +195,9 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          python -m pip install flake8 pytest
+          python -m pip install pytest
           pip install -e .[dev]
 
-      - name: Lint with flake8
-        run: |
-          # stop the build if there are Python syntax errors or undefined names
-          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-          # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-          flake8 . --count --exit-zero --max-line-length=200 --extend-ignore=E203,W503,F401,E402,E721,F841 --statistics
-
-      - name: Type checking with mypy
-        run: |
-          mypy msgcenterpy --disable-error-code=unused-ignore
-
       - name: Test with pytest
         run: |
           pytest