diff --git a/misc/requirements/requirements-tox.txt b/misc/requirements/requirements-tox.txt
index f5344f57e..e8b3de2b1 100644
--- a/misc/requirements/requirements-tox.txt
+++ b/misc/requirements/requirements-tox.txt
@@ -4,4 +4,4 @@ pluggy==0.6.0
 py==1.5.3
 six==1.11.0
 tox==3.0.0
-virtualenv==15.2.0
+virtualenv==16.0.0