diff --git a/requirements-dev.txt b/requirements-dev.txt
index aa10966..4d8e867 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -10,4 +10,4 @@ pre-commit==0.12.2
 py==1.4.32
 pytest==3.0.6
 pytest-django==3.1.2
-tox==2.5.0
+tox==2.6.0