diff --git a/requirements.txt b/requirements.txt
index 400fa9b1..ac6c7f18 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ flake8-isort==3.0.1
 
 # Testing
 # ------------------------------------------------------------------------------
-tox==3.17.1
+tox==3.18.0
 pytest==5.4.3
 pytest-cookies==0.5.1
 pytest-instafail==0.4.2