diff --git a/.travis.yml b/.travis.yml
index 626196e..cccdfb3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,7 +38,7 @@ install:
   - pip install setuptools --upgrade
   - pip install -e file://$PWD#egg=ipython[test] --upgrade
   - pip install trio curio --upgrade --upgrade-strategy eager
-  - pip install 'pytest<4' matplotlib
+  - pip install pytest matplotlib
   - pip install codecov check-manifest --upgrade
 
 script:
diff --git a/pytest.ini b/pytest.ini
index 537ebeb..9da3653 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,2 +1,2 @@
 [pytest]
-addopts = --duration=10
+addopts = --durations=10