1 files changed, 2 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index 2acfd2f..1d5e281 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,8 @@ deps =
 	# git+https://github.com/yaml/pyyaml@master#egg=pyyaml;python_version=="3.7"
 	# workaround for https://github.com/manahl/pytest-plugins/issues/110
 	pytest < 4
+	# workaround for https://github.com/manahl/pytest-plugins/issues/122
+	virtualenv
 commands =
 	py.test {posargs}
 	python setup.py checkdocs