diff --git a/misc/requirements/requirements-tox.txt b/misc/requirements/requirements-tox.txt
index acb3c0012..ca50e90d5 100644
--- a/misc/requirements/requirements-tox.txt
+++ b/misc/requirements/requirements-tox.txt
@@ -3,4 +3,4 @@
 pluggy==0.4.0
 py==1.4.31
 tox==2.4.1
-virtualenv==15.0.3
+virtualenv==15.1.0