diff --git a/.github/workflows/test_fast.yml b/.github/workflows/test_fast.yml
index 3e18c51d..31b7dd95 100644
--- a/.github/workflows/test_fast.yml
+++ b/.github/workflows/test_fast.yml
@@ -36,6 +36,10 @@ jobs:
     - name: Run fast tests
       run: |
         hatch -v run test -m "not slow"
+    - name: Upload coverage reports to Codecov
+      uses: codecov/codecov-action@v5
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
 
   publish:
     name: Publish to PyPI
diff --git a/README.md b/README.md
index 71bb1d54..10e80e54 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ programs** with tunable qubit interactions and arbitrary register topologies rea
 [![Documentation](https://github.com/pasqal-io/qadence/actions/workflows/build_docs.yml/badge.svg)](https://pasqal-io.github.io/qadence/latest)
 [![Pypi](https://badge.fury.io/py/qadence.svg)](https://pypi.org/project/qadence/)
 [![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
-![Coverage](https://img.shields.io/endpoint?url=https://pasqal-io.github.io/qadence/coverage.json)
+![Coverage](https://img.shields.io/codecov/c/github/pasqal-io/qadence?style=flat-square)
 
 
 ## Feature highlights
diff --git a/pyproject.toml b/pyproject.toml
index 4eb8d1ea..a03e2148 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -107,7 +107,7 @@ dependencies = [
 features = ["pulser", "visualization", "horqrux", "mlflow"]
 
 [tool.hatch.envs.default.scripts]
-test = "pytest -n auto --cov-report=json --cov-config=pyproject.toml --cov=qadence --cov=tests --ignore=./tests/test_examples.py {args}"
+test = "pytest -n auto --cov-report=xml --cov-config=pyproject.toml --cov=qadence --cov=tests --ignore=./tests/test_examples.py {args}"
 test-examples = "pytest ./tests/test_examples.py {args}"
 no-cov = "cov --no-cov {args}"
 test-docs = "mkdocs build --clean --strict"