diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3fe47ed1..13f5fddc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,17 +15,11 @@ jobs:
           python-version: '3.10'
       - name: Install dependencies
         run: pip install -r requirements.txt
-      - name: Run ATS
-        uses: codecov/codecov-ats@v0
-        env:
-          CODECOV_STATIC_TOKEN: ${{ secrets.CODECOV_STATIC_TOKEN }}
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
       - name: Run tests and collect coverage
-        run: pytest --cov app ${{ env.CODECOV_ATS_TESTS }}
+        run: pytest --cov app
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v4-beta
         with:
-          flags: smart-tests
           verbose: true
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/app/test_calculator.py b/app/test_calculator.py
index f5641938..3a284ff8 100644
--- a/app/test_calculator.py
+++ b/app/test_calculator.py
@@ -22,10 +22,3 @@ def test_multiply():
     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'