diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 01e604f92..8002d361a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -55,6 +55,12 @@ jobs:
         env:
           TOXENV: ${{ matrix.toxenv }}
         run: tox
+      - name: Upload codecov coverage
+        uses: codecov/codecov-action@v1
+        with:
+          files: ./coverage.xml
+          flags: ${{ matrix.toxenv }}
+          fail_ci_if_error: true
 
   coverage:
     runs-on: ubuntu-20.04
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 000000000..0a82dcd51
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,15 @@
+codecov:
+  require_ci_to_pass: yes
+
+coverage:
+  precision: 2
+  round: down
+  range: "70...100"
+
+comment:
+  layout: "diff,flags,files"
+  behavior: default
+  require_changes: yes
+
+github_checks:
+  annotations: true
diff --git a/tox.ini b/tox.ini
index 2b984daf4..42dd63967 100644
--- a/tox.ini
+++ b/tox.ini
@@ -66,16 +66,22 @@ commands = python setup.py build_sphinx
 
 [testenv:cover]
 commands =
-  pytest --cov gitlab --cov-report term --cov-report html \
+  pytest --cov --cov-report term --cov-report html \
     --cov-report xml gitlab/tests {posargs}
 
 [coverage:run]
 omit = *tests*
+source = gitlab
+
+[pytest]
+script_launch_mode = subprocess
 
 [testenv:cli_func_v4]
 deps = -r{toxinidir}/docker-requirements.txt
-commands = pytest --script-launch-mode=subprocess tools/functional/cli {posargs}
+commands =
+  pytest --cov --cov-report xml tools/functional/cli {posargs}
 
 [testenv:py_func_v4]
 deps = -r{toxinidir}/docker-requirements.txt
-commands = pytest tools/functional/api {posargs}
+commands =
+  pytest --cov --cov-report xml tools/functional/api {posargs}