diff --git a/dev-requirements.txt b/dev-requirements.txt
index 9cf29c8..0aebd28 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -29,7 +29,7 @@ setuptools==80.9.0
 six==1.17.0
 tzdata==2025.2
 urllib3==2.5.0
-virtualenv==20.34.0
+virtualenv==20.35.4
 wheel==0.45.1
 mypy==1.18.2
 ruff==0.14.2