diff --git a/.github/workflows/constraints.txt b/.github/workflows/constraints.txt
index 4230890..34b1eeb 100644
--- a/.github/workflows/constraints.txt
+++ b/.github/workflows/constraints.txt
@@ -2,4 +2,4 @@ pip==26.1.2
 nox==2026.4.10
 nox-poetry==1.2.0
 poetry==2.4.1
-virtualenv==21.5.1
+virtualenv==21.7.0