diff --git a/ci/requirements.txt b/ci/requirements.txt
index 04f10cb..7fab089 100644
--- a/ci/requirements.txt
+++ b/ci/requirements.txt
@@ -1,4 +1,4 @@
-virtualenv>=21.3.0
+virtualenv>=21.3.1
 pip>=25.0
 setuptools>=75.0
 six>=1.17.0