diff --git a/.github/workflows/linting.yaml b/.github/workflows/linting.yaml
new file mode 100644
index 0000000..947de61
--- /dev/null
+++ b/.github/workflows/linting.yaml
@@ -0,0 +1,33 @@
+name: Linting Linux
+
+on:
+  pull_request:
+
+jobs:
+  linting:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        python-version:
+        - "3.11"
+
+    name: linting
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+            python-version : ${{ matrix.python-version }}
+
+      - name: Install flake8
+        run: | 
+          python -m pip install flake8
+
+      - name: Check format without making corrections
+        run: |
+          flake8
diff --git a/.github/workflows/unit-test.yaml b/.github/workflows/unit-test.yaml
index e846e84..4b7dbf2 100644
--- a/.github/workflows/unit-test.yaml
+++ b/.github/workflows/unit-test.yaml
@@ -1,11 +1,13 @@
 name: Unit Test Linux
 
 on:
-  push:
-  # pull_request:
+  workflow_run:
+    workflows: [Linting Linux]
+    types:
+      - completed
 
 jobs:
-  run-tests:
+  unit-test:
     strategy:
       fail-fast: false
       matrix:
@@ -15,7 +17,7 @@ jobs:
 
     name: unit-test
     runs-on: ${{ matrix.os }}
-    # runs-on: python:alpine
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
 
     steps:
       - name: Checkout code
@@ -37,4 +39,3 @@ jobs:
       - name: Run tests
         run: |
           python -m unittest discover -v
-
diff --git a/funcs/__init__.py b/funcs/__init__.py
index 2b8e6eb..5a86c79 100644
--- a/funcs/__init__.py
+++ b/funcs/__init__.py
@@ -1 +1 @@
-# placeholder file to modularize (to package) .py files under the directory "funcs", making the files importable.
\ No newline at end of file
+# placeholder file to modularize (to package) .py files under the directory "tests", making the files importable.
diff --git a/funcs/func.py b/funcs/func.py
index 46d0d23..8d531d0 100644
--- a/funcs/func.py
+++ b/funcs/func.py
@@ -1,2 +1,2 @@
 def sum(x: float, y: float) -> float:
-    return x + y
\ No newline at end of file
+    return x + y
diff --git a/requirements.txt b/requirements.txt
index 1b946d5..51a2c28 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,15 +1,4 @@
-annotated-types==0.5.0
-anyio==3.7.1
-fastapi==0.101.1
-idna==3.4
-numpy==1.25.2
-pandas==2.0.3
-pydantic==2.3.0
-pydantic_core==2.6.3
-python-dateutil==2.8.2
-pytz==2023.3
-six==1.16.0
-sniffio==1.3.0
-starlette==0.27.0
-typing_extensions==4.7.1
-tzdata==2023.3
+flake8==6.1.0
+mccabe==0.7.0
+pycodestyle==2.11.0
+pyflakes==3.1.0
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..66da313
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,10 @@
+[flake8]
+max-line-length = 120
+exclude = 
+    .git,
+    __pycache__,
+    docs/source/conf.py,
+    old,
+    build,
+    dist,
+    venv
diff --git a/tests/__init__.py b/tests/__init__.py
index 61d14e5..5a86c79 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1 +1 @@
-# placeholder file to modularize (to package) .py files under the directory "tests", making the files importable.
\ No newline at end of file
+# placeholder file to modularize (to package) .py files under the directory "tests", making the files importable.
diff --git a/tests/test_func.py b/tests/test_func.py
index 2d37034..8618217 100644
--- a/tests/test_func.py
+++ b/tests/test_func.py
@@ -1,10 +1,12 @@
 import unittest
 from funcs import func
 
+
 class Test(unittest.TestCase):
 
     def test_sum(self):
-        self.assertEqual(func.sum(2,3), 5)
+        self.assertEqual(func.sum(2, 3), 5)
+
 
 if __name__ == "__main__":
-    unittest.main()
\ No newline at end of file
+    unittest.main()