diff --git a/requirements-dev.txt b/requirements-dev.txt
index 223a87486..1cfd82ad9 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -8,4 +8,4 @@ pytest-json==0.4.0
 pytest-pythonpath==0.7.3
 pylama==7.7.1
 mock==4.0.2
-tox==3.14.6
+tox==3.15.0