diff --git a/README.md b/README.md
index 9fdede2..cc7d5a8 100644
--- a/README.md
+++ b/README.md
@@ -202,9 +202,11 @@ $ pip install rexmex --upgrade
 
 **Running tests**
 
+Tests can be run with `tox` with the following:
+
 ```sh
-$ pytest ./tests/unit -cov rexmex/
-$ pytest ./tests/integration -cov rexmex/
+$ pip install tox
+$ tox -e py
 ```
 
 --------------------------------------------------------------------------------
diff --git a/tox.ini b/tox.ini
index cc9bb7d..7eef3f3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,13 @@ envlist =
     lint
     flake8
     mypy
+    py
+
+[testenv:py]
+commands =
+    pytest --cov rexmex
+extras =
+    test
 
 [testenv:lint]
 deps =