diff --git a/requirements.dev.txt b/requirements.dev.txt
index c72793b..fddb329 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -2,7 +2,7 @@ pytest==8.3.3
 mypy==1.11.2
 black==24.8.0
 ruff==0.6.5
-tox~=4.18.1
+tox~=4.20.0
 pre-commit~=3.8.0
 build>=0.10.0
 coverage>=7.2.7