diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 34fa441..2612c31 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,9 +5,54 @@ on:
     branches:
       - dev
 
+  pull_request:
+    branches:
+      - main
+
 jobs:
-  docker-lint:
+  linters:
     runs-on: ubuntu-latest
     steps:
-      - name: lint dockerfile
-        run: echo hello
+      - name: Getting the codebase
+        uses: actions/checkout@v4
+        with:
+          ref: dev
+      - name: Lint the Dockerfile
+        uses: hadolint/hadolint-action@v3.1.0
+        with:
+          dockerfile: Dockerfile
+      - name: Lint the source code
+        uses: Silleellie/pylint-github-action@v2.1
+        with:
+          lint-path: |
+            mysite
+            polls
+            manage.py
+          requirements-path: requirements.txt
+          readme-path: README.md
+          python-version: 3.11  # python version which will lint the package
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: pip install -r requirements.txt
+
+      - name: Run tests
+        run: pytest
+
+      - name: Notify in telegram about fail
+        if: ${{ failure() }}
+        uses: appleboy/telegram-action@master
+        with:
+          to: ${{ secrets.TELEGRAM_TO }}
+          token: ${{ secrets.TELEGRAM_TOKEN }}
+          message: |
+            ${{ github.actor }} created commit:
+            Commit message: ${{ github.event.commits[0].message }}
+            Repository: ${{ github.repository }}
+            See changes: https://github.com/${{ github.repository }}/commit/${{github.sha}}
+
+      - name: Check fail
+        run: echo "Unreachable"
diff --git a/.gitignore b/.gitignore
index c234e10..5e8a3f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ venv
 polls/__pycache__
 polls/migrations/__pycache__
 .env
+tests/__pycache__
diff --git a/Dockerfile b/Dockerfile
index b1750b1..8a6e1cf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM python:3.11-alpine
 WORKDIR /app
 COPY requirements.txt .
-RUN pip install -r requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
 
 COPY ./mysite ./mysite
 COPY ./polls ./polls
diff --git a/README.md b/README.md
index cdcff97..f7d5d35 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
 # Django example app
 
 Application made by django's instruction for **DevOps** education purposes
+
+# Pylint
+
+![pylint](https://img.shields.io/badge/PyLint-6.20-orange?logo=python&logoColor=white)
diff --git a/polls/tests.py b/polls/tests.py
index 01460c9..0cf692e 100644
--- a/polls/tests.py
+++ b/polls/tests.py
@@ -123,3 +123,6 @@ class QuestionDetailViewTests(TestCase):
         url = reverse("polls:detail", args=(past_question.id,))
         response = self.client.get(url)
         self.assertContains(response, past_question.question_text)
+    def test_fake_test(self):
+        self.assertEqual(0, 1)
+                       
diff --git a/requirements.txt b/requirements.txt
index ab453d0..04d180b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,14 @@
 asgiref==3.8.1
 Django==5.2.1
 django-debug-toolbar==5.2.0
+iniconfig==2.1.0
+packaging==25.0
 pip==23.0.1
+pluggy==1.6.0
 psycopg==3.2.9
 psycopg-binary==3.2.9
+Pygments==2.19.1
+pytest==8.4.0
 setuptools==66.1.1
 sqlparse==0.5.3
 typing_extensions==4.14.0
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_fail.py b/tests/test_fail.py
new file mode 100644
index 0000000..d29d95b
--- /dev/null
+++ b/tests/test_fail.py
@@ -0,0 +1,3 @@
+def test_fail():
+    # Fixed
+    assert 1 == 1
diff --git a/tests/test_success.py b/tests/test_success.py
new file mode 100644
index 0000000..b5d98d0
--- /dev/null
+++ b/tests/test_success.py
@@ -0,0 +1,2 @@
+def test_success():
+    assert True