diff --git a/requirements/tox.txt b/requirements/tox.txt
index 77a68f9a..6fb56c96 100644
--- a/requirements/tox.txt
+++ b/requirements/tox.txt
@@ -8,10 +8,10 @@ cachetools==6.1.0         # via tox
 chardet==5.2.0            # via tox
 colorama==0.4.6           # via tox
 distlib==0.4.0            # via virtualenv
-filelock==3.18.0          # via tox, virtualenv
+filelock==3.19.1          # via tox, virtualenv
 packaging==25.0           # via pyproject-api, tox
 platformdirs==4.3.8       # via tox, virtualenv
 pluggy==1.6.0             # via tox
 pyproject-api==1.9.1      # via tox
 tox==4.28.4               # via -r requirements/tox.in
-virtualenv==20.33.1       # via tox
+virtualenv==20.34.0       # via tox