Merge 4c1b9de into ea4ce24

Author: pyup-bot

requirements/development.txt

@@ -10,7 +10,7 @@ pylint==2.1.1
 flake8==3.5.0
 pyflakes==2.0.0
 mccabe==0.6.1
-pytest==3.4.0
+pytest==4.1.1
 pytest-cov==2.5.1
 tox==3.2.1
 coveralls==1.2.0