diff --git a/requirements-testing.txt b/requirements-testing.txt
index d9825e28..0430abec 100644
--- a/requirements-testing.txt
+++ b/requirements-testing.txt
@@ -7,5 +7,5 @@ autopep8==1.4.4
 mypy==0.761
 py-spy==0.3.0
 codecov==2.0.15
-tox==3.14.2
+tox==3.14.3
 mccabe==0.6.1