diff --git a/.github/workflows/check-lint.yml b/.github/workflows/check-lint.yml
new file mode 100644
index 0000000..948a83e
--- /dev/null
+++ b/.github/workflows/check-lint.yml
@@ -0,0 +1,71 @@
+name: lint
+
+on:
+  push:
+    branches-ignore:
+      - test
+    tags-ignore:
+      - "*"
+  pull_request:
+    branches:
+      - 'release/**'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      #----------------------------------------------
+      #       check-out repo and set-up python
+      #----------------------------------------------
+      - name: Check out repository
+        uses: actions/checkout@v3
+      - name: Set up python
+        id: setup-python
+        uses: actions/setup-python@v3
+        with:
+          python-version: '3.10'
+      #----------------------------------------------
+      #  -----  install & configure poetry  -----
+      #----------------------------------------------
+      - name: Install poetry
+        env:  # Keep in sync with `POETRY_VERSION` in `Dockerfile`
+          POETRY_VERSION: "1.1.14"
+        run: |
+          curl -sSL "https://install.python-poetry.org" | python -
+          # Adding `poetry` to `$PATH`:
+          echo "$HOME/.local/bin" >> $GITHUB_PATH
+
+      - name: Set up cache
+        uses: actions/cache@v3
+        with:
+          path: .venv
+          key: venv-${{ matrix.python-version }}-${{ hashFiles('poetry.lock') }}
+      #----------------------------------------------
+      #       load cached venv if cache exists
+      #----------------------------------------------
+      - name: Load cached venv
+        id: cached-poetry-dependencies
+        uses: actions/cache@v3
+        with:
+          path: .venv
+          key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
+      #----------------------------------------------
+      # install dependencies if cache does not exist
+      #----------------------------------------------
+      - name: Install dependencies
+        run: |
+          poetry config virtualenvs.in-project true
+          poetry install
+          poetry run pip install -U pip
+      #----------------------------------------------
+      #              run test suite
+      #----------------------------------------------
+      - name: Analysing the code with mypy
+        run: |
+          mypy .
+      - name: Analysing the code with flake8
+        run: |
+          flake8
+      - name: Analysing code with isort
+        run: |
+          isort --check-only app
\ No newline at end of file
diff --git a/.github/workflows/poetry-test.yml b/.github/workflows/poetry-test.yml
index e50c200..3d598ff 100644
--- a/.github/workflows/poetry-test.yml
+++ b/.github/workflows/poetry-test.yml
@@ -18,10 +18,10 @@ jobs:
       #       check-out repo and set-up python
       #----------------------------------------------
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Set up python
         id: setup-python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v3
         with:
           python-version: '3.10'
       #----------------------------------------------
@@ -29,7 +29,7 @@ jobs:
       #----------------------------------------------
       - name: Install poetry
         env:  # Keep in sync with `POETRY_VERSION` in `Dockerfile`
-          POETRY_VERSION: "1.1.13"
+          POETRY_VERSION: "1.1.14"
         run: |
           curl -sSL "https://install.python-poetry.org" | python -
           # Adding `poetry` to `$PATH`:
@@ -45,7 +45,7 @@ jobs:
       #----------------------------------------------
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: .venv
           key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
diff --git a/app/main.py b/app/main.py
index 1082404..bc5103e 100644
--- a/app/main.py
+++ b/app/main.py
@@ -26,8 +26,8 @@ async def on_shutdown(dp: Dispatcher) -> None:
     # Close DB connection (if used)
     if driver:
         driver.close()
-    await dispatcher.storage.close()
-    await dispatcher.storage.wait_closed()
+    await dp.storage.close()
+    await dp.storage.wait_closed()
 
     logger.warning('Bye!')
 
diff --git a/app/tests/bot/test_bot.py b/app/tests/bot/test_bot.py
index c1606e4..8b649bc 100644
--- a/app/tests/bot/test_bot.py
+++ b/app/tests/bot/test_bot.py
@@ -1,7 +1,9 @@
 import pytest
 from aiogram import Bot, types
+from aiogram.dispatcher.filters.builtin import Command
 from app.tests.conftest import FakeTelegram
 from app.tests.data.factories import UserFactory
+from core.bot import dispatcher
 
 pytestmark = [
     pytest.mark.asyncio,
@@ -16,3 +18,16 @@ async def test_parse_site(bot: Bot) -> None:
         result = await bot.me
 
     assert result == user
+
+
+async def test_command1(bot: Bot) -> None:
+
+    dispatcher.bot = bot
+    handlers = dispatcher.message_handlers.handlers
+    for handler in handlers:
+        handl = list(
+            filter(lambda obj: isinstance(obj.filter, Command), handler.filters)
+        )
+        if handl:
+            command = handl[0].filter.commands[0]
+            assert command