diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e9084994..13f5fddc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,13 +3,14 @@ on: [push, pull_request]
 jobs:
   run:
     runs-on: ubuntu-latest
+
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
-          set-safe-directory: true
+          fetch-depth: 0
       - name: Set up Python 3.10
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: '3.10'
       - name: Install dependencies
@@ -17,4 +18,8 @@ jobs:
       - name: Run tests and collect coverage
         run: pytest --cov app
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4-beta
+        with:
+          verbose: true
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..c18dd8d8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+__pycache__/
diff --git a/LICENSE.md b/LICENSE.md
new file mode 100644
index 00000000..c341b2a0
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Codecov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/app/__pycache__/__init__.cpython-39.pyc b/app/__pycache__/__init__.cpython-39.pyc
deleted file mode 100644
index d38e9303..00000000
Binary files a/app/__pycache__/__init__.cpython-39.pyc and /dev/null differ
diff --git a/app/__pycache__/calculator.cpython-39.pyc b/app/__pycache__/calculator.cpython-39.pyc
deleted file mode 100644
index a39eb26f..00000000
Binary files a/app/__pycache__/calculator.cpython-39.pyc and /dev/null differ
diff --git a/app/__pycache__/test_calculator.cpython-39-pytest-7.1.1.pyc b/app/__pycache__/test_calculator.cpython-39-pytest-7.1.1.pyc
deleted file mode 100644
index 7e1f15b7..00000000
Binary files a/app/__pycache__/test_calculator.cpython-39-pytest-7.1.1.pyc and /dev/null differ
diff --git a/app/test_calculator.py b/app/test_calculator.py
index f5641938..329905fe 100644
--- a/app/test_calculator.py
+++ b/app/test_calculator.py
@@ -15,17 +15,3 @@ def test_subtract():
     assert Calculator.subtract(0, 2.0) == -2.0
     assert Calculator.subtract(2.0, 0.0) == 2.0
     assert Calculator.subtract(-4, 2.0) == -6.0
-
-def test_multiply():
-    assert Calculator.multiply(1, 2) == 2.0
-    assert Calculator.multiply(1.0, 2.0) == 2.0
-    assert Calculator.multiply(0, 2.0) == 0.0
-    assert Calculator.multiply(2.0, 0.0) == 0.0
-    assert Calculator.multiply(-4, 2.0) == -8.0
-
-def test_divide():
-    # assert Calculator.divide(1, 2) == 0.5
-    assert Calculator.divide(1.0, 2.0) == 0.5
-    assert Calculator.divide(0, 2.0) == 0
-    assert Calculator.divide(-4, 2.0) == -2.0
-    # assert Calculator.divide(2.0, 0.0) == 'Cannot divide by 0'
diff --git a/codecov.yml b/codecov.yml
index 6f151f75..1ed5513f 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -1,6 +1,13 @@
-profiling:
-  critical_files_paths:
-    - app/calculator.py
+flag_management:
+  individual_flags:
+    - name: smart-tests
+      carryforward: true
+      carryforward_mode: "labels"
+      statuses:
+        - type: "project"
+        - type: "patch"
 
-comment:
-  show_critical_paths: true
+cli:
+  plugins:
+    pycoverage:
+      report_type: "json"
diff --git a/requirements.txt b/requirements.txt
index c011c2e5..9037410e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,10 @@
-attrs==21.4.0
-coverage==6.4.1
-iniconfig==1.1.1
-packaging==21.3
-pluggy==1.0.0
+attrs==23.2.0
+coverage==7.4.0
+iniconfig==2.0.0
+packaging==23.2
+pluggy==1.3.0
 py==1.11.0
-pyparsing==3.0.9
-pytest==7.1.2
-pytest-cov==3.0.0
+pyparsing==3.1.1
+pytest==7.4.4
+pytest-cov==4.1.0
 tomli==2.0.1
diff --git a/tests.py b/tests.py
deleted file mode 100644
index 6503da36..00000000
--- a/tests.py
+++ /dev/null
@@ -1,18 +0,0 @@
-import unittest
-
-import awesome
-
-
-class TestMethods(unittest.TestCase):
-    def test_add(self):
-        self.assertEqual(awesome.smile(), ":)")
-
-    def test_add_again(self):
-        self.assertEqual(awesome.smile(), ":)")
-
-    def test_if(self):
-        self.assertTrue(awesome.test_if(1))
-
-
-if __name__ == '__main__':
-    unittest.main()