diff --git a/requirements.txt b/requirements.txt
index faaabe4a..754955fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ flake8==3.8.3
 
 # Testing
 # ------------------------------------------------------------------------------
-tox==3.20.0
+tox==3.24.1
 pytest==6.1.0
 pytest-cookies==0.5.1
 pytest-xdist==2.1.0