diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
new file mode 100644
index 00000000..34f20df4
--- /dev/null
+++ b/.github/workflows/CI.yml
@@ -0,0 +1,36 @@
+name: Workflow for CI and Codecov Action
+on: [push, pull_request]
+jobs:
+  run:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    env:
+      OS: ${{ matrix.os }}
+      PYTHON: '3.9'
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3.9
+    - name: Install dependencies
+      run: |
+          pip install pytest
+          pip install pytest-cov
+          pip install -e .
+    - name: Generate coverage report
+      run: |
+        pytest --cov=./ --cov-report=xml
+    - name: Upload coverage to Codecov
+      if: success() || failure()
+      uses: codecov/codecov-action@v4
+      with:
+        env_vars: OS,PYTHON
+        file: ./coverage.xml
+        flags: unittests
+        name: codecov-umbrella
+        token: ${{ secrets.CODECOV_TOKEN }}
+        slug: facebookresearch/Pearl
+        verbose: true
diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
deleted file mode 100644
index 2950b905..00000000
--- a/.github/workflows/codecov.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-name: CodeCov
-on: [push, pull_request]
-jobs:
-  run:
-    runs-on: ubuntu-latest
-    env:
-      OS: ubuntu-latest
-      PYTHON: '3.9'
-    steps:
-    - uses: checkout@v4
-    - name: Setup Python
-      uses: actions/setup-python@main
-      with:
-        python-version: 3.9
-    - name: Install Pearl
-      run: |
-        pip install -e .
-    - name: Generate Report
-      run: |
-        pip install coverage
-        coverage run -m unittest
-    - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@v3
-      env:
-        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/README.md b/README.md
index 9082560a..2c05e0de 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@
 
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Support Ukraine](https://img.shields.io/badge/Support-Ukraine-FFD500?style=flat&labelColor=005BBB)](https://opensource.fb.com/support-ukraine)
+[![codecov](https://codecov.io/gh/facebookresearch/Pearl/graph/badge.svg?token=CARFOP3E30)](https://codecov.io/gh/facebookresearch/Pearl)
 
 More details of the library at our [official website](https://pearlagent.github.io).