diff --git a/.converagerc b/.converagerc
new file mode 100644
index 0000000..461ec33
--- /dev/null
+++ b/.converagerc
@@ -0,0 +1,7 @@
+[run]
+branch = True
+source = oslo_limit
+omit = oslo_limit/tests/*
+
+[report]
+ignore_errors = True
diff --git a/test-requirements.txt b/test-requirements.txt
index 049cf85..7d6094f 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,6 +7,8 @@ hacking>=3.0.1,<3.1.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 stestr>=1.0.0 # Apache-2.0
 
+coverage!=4.4,>=4.0 # Apache-2.0
+
 # Bandit security code scanner
 bandit>=1.7.0,<1.8.0 # Apache-2.0
 
diff --git a/tox.ini b/tox.ini
index 54c1f12..9e084c1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -34,7 +34,13 @@ commands =
   sphinx-build -W --keep-going -b html doc/source doc/build/html
 
 [testenv:cover]
-commands = python setup.py test --coverage --coverage-package-name=oslo_limit --testr-args='{posargs}'
+setenv =
+  PYTHON=coverage run --source oslo_limit --parallel-mode
+commands =
+  stestr run --slowest {posargs}
+  coverage combine
+  coverage html -d cover
+  coverage report
 
 [testenv:releasenotes]
 allowlist_externals = rm