diff --git a/requirements-dev.txt b/requirements-dev.txt
index 403de05..dacc6b8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -22,7 +22,7 @@ pyyaml==6.0.1
     # via pre-commit
 ruff==0.1.8
     # via FVHIoT (pyproject.toml)
-virtualenv==20.25.0
+virtualenv==20.26.6
     # via pre-commit
 
 # The following packages are considered to be unsafe in a requirements file: