diff --git a/requirements-dev.txt b/requirements-dev.txt
index 4b6a090..5896f88 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -25,6 +25,6 @@ pytest==8.3.2
 PyYAML==6.0.2
 setuptools==74.1.2
 tomlkit==0.13.2
-virtualenv==20.26.3
+virtualenv==20.26.4
 wrapt==1.16.0
 zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability