diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 67f3542..eb5712a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,7 +50,15 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
       - run: pip install -e .[tests]
-      - run: python -m pytest -sv
+      - run: python -m pytest --cov=predicTCR_server --cov-report=xml -sv
+      - uses: codecov/codecov-action@v4
+        with:
+          files: ./backend/coverage.xml
+          name: backend
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: true
+          verbose: true
+
   web-docker:
     runs-on: ubuntu-latest
     name: "Docker website"
diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 06518c0..e29dcdb 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -30,7 +30,7 @@ dependencies = [
 predicTCR_server = "predicTCR_server.main:main"
 
 [project.optional-dependencies]
-tests = ["pytest"]
+tests = ["pytest", "pytest-randomly",                     "pytest-cov",]
 
 [tool.setuptools.dynamic]
 version = { attr = "predicTCR_server.__version__" }