diff --git a/requirements/tox.txt b/requirements/tox.txt
index f3e6d5596..12f53b369 100644
--- a/requirements/tox.txt
+++ b/requirements/tox.txt
@@ -1,3 +1,3 @@
 -r ./coverage.txt
-tox==4.8.0
+tox==4.9.0
 tox-gh-actions==3.1.3