diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 52d84ff..beb247d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,7 +34,7 @@ jobs:
         pip install .
     - name: Run tests
       run: |
-        py.test -vv --cov=injector --cov-branch --cov-report html --cov-report term
+        pytest -vv --cov=injector --cov-branch --cov-report html --cov-report term
         if which mypy; then mypy injector ; fi
         if which black; then black --check . ; fi
         check-manifest
diff --git a/README.md b/README.md
index 1b81f96..69b1012 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@ Injector - Python dependency injection framework, inspired by Guice
 ===================================================================
 
 [![CI](https://github.com/python-injector/injector/actions/workflows/ci.yml/badge.svg)](https://github.com/python-injector/injector/actions/workflows/ci.yml)
-[![Coverage Status](https://codecov.io/gh/python-injector/injector/branch/master/graph/badge.svg)](https://codecov.io/gh/alecthomas/injector)
+[![Coverage Status](https://codecov.io/gh/python-injector/injector/branch/master/graph/badge.svg)](https://app.codecov.io/gh/python-injector/injector)
 
 Introduction
 ------------
diff --git a/conftest.py b/conftest.py
new file mode 100644
index 0000000..e69de29
diff --git a/pytest.ini b/pytest.ini
index 7c0b6fd..cf7ece3 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,3 +1,3 @@
 [pytest]
-addopts = -v --tb=native --doctest-glob=*.md --doctest-modules --cov-report term --cov-report html --cov-report xml --cov=injector --cov-branch
+addopts = -v --tb=native --doctest-glob=*.md --doctest-modules --cov-report term --cov-report html --cov-report xml --cov=injector --cov-branch --cov-fail-under=90
 norecursedirs = __pycache__ *venv* .git build